Explain how we use a tree diagram to determine the probability of an events

Answers

Answer 1

Tree diagrams are a helpful tool for calcuating probabilities when there are several independent events involved. They get their name because these types of diagrams resemble the shape of a tree. The branches of a tree split off from one another, which then in turn have smaller branches.  Just like a tree, tree diagrams branch out and can become quite intricate.



Related Questions

Assume the $10,000 Treasury bill, 4% for 13 weeks. Calculate the effective rate of interest

Answers

Final answer:

To find the effective rate of interest on a 13-week Treasury bill with a 4% rate, you first convert the discount rate to an annualized rate by dividing the time period by the number of weeks in a year. As Treasury bills do not compound within the maturity period, the EAR is simply the annualized rate, which in this case is 16%.

Explanation:

To calculate the effective rate of interest for a $10,000 Treasury bill with a 4% interest rate for 13 weeks, we use the formula for the effective annual rate (EAR). The formula considers the nominal annual interest rate and the number of compounding periods per year.

The nominal annual interest rate is given by the face value minus the price paid for the Treasury bill, divided by the price paid, and then multiplied by 100 to get the percentage. However, the question only provides the interest rate but not the purchase price, so I'm assuming this given interest rate is the discount rate. First, we need to calculate the annualized discount rate and then convert it to the effective annual rate since Treasury bills are typically discounted securities.

To calculate the annualized discount rate:

Convert the 13 weeks to a fraction of the year: 13/52 = 0.25 years.Multiply the stated discount rate (4%) by the annualization factor (1/0.25): 4% * (1/0.25) = 16%.

Now, to convert the annualized discount rate to the effective annual rate (EAR):

EAR = (1 + nominal interest rate / number of compounding periods) ^ number of compounding periods - 1.Since Treasury bills do not have compounding within their maturity period, the number of compounding periods is 1.EAR = (1 + 0.16 / 1) ^ 1 - 1 = 0.16 or 16%.

Note: If the purchase price was lower than the face value to account for the 4% interest over 13 weeks, the effective annual rate would be higher than 16%.

what is the volume of 20 grams of an object with a density of 55g/cm^3?

Answers

v=2.75 grams(answer)
divide the density by the mass

The volume of an object with a mass of 55g/cm³ and a mass of 20 grams is 27.5cm³.

What are mass, volume, and density?

Mass is the quantity of matter in a physical body.

The volume shows the amount of 3D space occupied by a closed object.

Density is mass per unit of volume.

Volume is only defined for 3-dimensional objects 2 dimensional objects have no volume.

We know volume is equal to mass/density.

Given an object has a density of 55g/cm³ and a mass is 20 grams.

∴ Volume = (55/20) cm³.

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is 4.47 a rational number

Answers

yes 4.47 is a rational number

Final answer:

Yes, 4.47 is a rational number because it can be expressed as a fraction of two integers.

Explanation:

Yes, 4.47 is a rational number.

A rational number is a number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

In this case, we can express 4.47 as the fraction 447/100, which is a quotient of two integers. Therefore, it is a rational number.

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Tammy and Jodi assembled 420 circuit boards in 8 hours. The next day they assembled 36 more circuit boards in the same amount of time. What was their average rate on the second day? A. 87 boards per hour B. 70 boards per hour C. 57 boards per hour D. 36 boards per hour

Answers

1st day
8 hours = 420 circuits

2nd day
8 hours = 420 + 36
= 456 circuits

Average = 456/8
= 57 circuits per hour

Option C. Is the right answer

Answer:

C

Step-by-step explanation:

Which measure of central tendency best describes this situation: the ages of students in an eighth-grade class?

a) Mean; there likely are no outliers.
b) Mode; the data are not numerical.
c) Median; there likely are outliers.
d) Median; there likely are no outliers.

Answers

I would say the mean . It is unlikely there are any outliers

Answer:

Step-by-step explanation:

Its B=median

Susie is an organic vegetable grower the perimeter of her rectangular vegetable garden is 72 yards the width of the vegetable garden is 9 yards how long is the vegetable garden

Answers

I think it is 27 yards long. Hope I helped!

A spider walks about 19 cm each second. About how long would it take the spider to walk around the perimeter of a room that is 3 m wide and 4 m long?

Answers

Final answer:

To calculate the time it takes the spider to walk around the perimeter of a 3 m by 4 m room, we first find the perimeter in meters, convert it to centimeters, and then divide by the spider's speed in cm/s. The perimeter of the room is 14 m, which is 1400 cm. Dividing this by the spider's speed, 19 cm/s, gives us approximately 74 seconds.

Explanation:

To find out how long it would take the spider to walk around the perimeter of a room that is 3 m wide and 4 m long, we first need to calculate the perimeter of the room. The formula for perimeter P of a rectangle is P = 2(l + w), where l is the length and w is the width.

So for a room that is 3 m wide and 4 m long, the perimeter is:

P = 2(4 m + 3 m) = 2(7 m) = 14 m

Since the spider walks 19 cm each second and there are 100 cm in a meter, we convert the perimeter to centimeters:

14 m = 1400 cm

Now, we calculate the time t it will take for the spider to walk this distance by dividing the perimeter by the spider's speed:

t = perimeter/speed = 1400 cm / 19 cm/s

Therefore, the time taken for the spider to walk around the perimeter is approximately:

t = 73.68 s

So, the spider would take about 74 seconds to walk around the perimeter of the room.

Final answer:

To determine the time for a spider to walk around a 3 m by 4 m room, calculate the perimeter (14 m), convert it to centimeters (1400 cm), and divide by the spider's speed (19 cm/s), resulting in approximately 73.68 seconds.

Explanation:

To calculate the time it would take for a spider to walk around the perimeter of a 3 m by 4 m room, first, find the perimeter of the room by adding the lengths of all the sides:

Perimeter = 2 × (3 m) + 2 × (4 m) = 6 m + 8 m = 14 m.

Next, since the spider walks 19 cm each second, convert the perimeter from meters to centimeters because the units need to match.

Perimeter in centimeters = 14 m × 100 cm/m = 1400 cm.

Now, divide the total perimeter by the spider's speed to find the time it takes:

Time = Perimeter / SpeedTime = 1400 cm / 19 cm/sTime ≈ 73.68 seconds

Therefore, it would take approximately 73.68 seconds for the spider to walk around the perimeter of the room.

In one weekend,a theatre sells 74,877 tickets to a new movie. Write the values for each of the 7s in 74,877.

Answers

Answer:

Given number,

74, 877

Since, the place value chart,

Ones = 1,

Tens = 10,

Hundred = 100,

Thousand = 1000,

Ten thousand = 10,000

Hundred thousands = 100,000

Millions  = 1,000,000

Hence, by the above chart,

For the number,

74,877

Place value of 7 at ones place = 7,

Place value of 7 at tens place = 70,

Place value of 7 at ten thousand place = 700,000

Is 17 1/2 to the right or left of 17 2/3 on the number line? Explain your answer.

Answers

17 2/3 is greater than 17 1/2
so 
 17 1/2 is to the left  of 17 2/3 on the number line

 [tex]17\frac{1}{2}[/tex]  lies to the left of the number line [tex]17\frac{2}{3}[/tex]

What is number line?

A number line can be defined as a pictorial representation of numbers on a straight line.  

Given that, Is 17 1/2 to the right or left of 17 2/3 on the number line

17 1/2 = 17.5

17 2/3 = 17.66

17.5 < 17.66

Hence,  [tex]17\frac{1}{2}[/tex]  lies to the left of [tex]17\frac{2}{3}[/tex]

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Evaluate 12x−3y12x−3y when x=−14x=−14 and y=3y=3.

Answers

Well the first problem that i solve is you have to move 12 it will give you 
-3y power 12 - 3y + 12

Answer:

-12

Step-by-step explanation:

I think I got it right on Big Ideas

If a stereo is sold for $59.99 and Karen pays $64.19 for it when she checks out, what is the sales tax in the area

Answers

Okay, so the first thing you need to do is find the difference.

64.19 - 59.99 = 4.20

So the percentage is determined by dividing that difference by the cost of the item originally:

4.20 / 59.99 = about .07

Next, you change this number to a percentage by moving the decimal to the right two spaces, so that would be 7%.

Therefore, the sales tax in the area is 7%. 
Final answer:

The sales tax in the area where Karen bought the stereo is $4.20. This was calculated by subtracting the original price of the stereo ($59.99) from the total price paid ($64.19).

Explanation:

To find the sales tax in this scenario, we need to subtract the original price of the stereo, which is $59.99, from the total price that Karen paid, which is $64.19. The difference will represent the sales tax that Karen had to pay at the checkout.

So we calculate: $64.19 - $59.99 = $4.20

Therefore, the sales tax that Karen paid for the stereo is $4.20.

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Which number is equal to 10 to the 3rd power

Answers

Here is your answer

Just multiple...
10×10×10=1,000

Your answer is:
10^3=1,000
It would equal 1,000 because you would have to multiply 10 3 times 10 to the 3rd power = 10 x 10 x 10

Your picture of your family crest is 4.5 inches wide. You need a reduced copy for the front page of the family newsletter. The copy must fit in a space 1.8 inches wide. Which scale factor should you use on the copy machine to adjust the size of your pictures of the crest?

A) 2/5
B) 5/2
C) 1/2
D) 1/5

Answers

Answer:

The answer is : A 2/5

(I just finished taking the test)



The scale factor would be 2/5 to reduce the width from 4.5 inches to 1.8 inches.

What is a scale factor?

A scale factor is defined as the ratio of the scale of a given original object to the scale of a new object that is its representation but of a different size (bigger or smaller). For example, we can enlarge a rectangle with sides of 2 cm and 4 cm by multiplying each side by a number, say 2.

Given that your picture of your family crest is 4.5 inches wide. You need a reduced copy for the front page of the family newsletter. The copy must fit in a space 1.8 inches wide.

The scale factor will be calculated as,

Scale factor = Reduced size / Original size

Scale factor = 1.8 / 4.5

Scale factor = 0.4 or 2/5

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Balu and Pumba shared ½ of a cake. Balu got to eat twice as much cake as Pumba. What fraction of the whole cake did Balu eat?

Answers

Okay. So, basically a 1/2 of a cake would be broken into 3 parts, because Balu eats double the amount Pumba does and Pumba eats cake as well. Let’s do 1/2 / 3. To divide fractions, keep 1/2 the same, change the division into multiplication, and flip 3 into 1/3. Multiply across. 1/2 * 1/3 is 1/6. 1/6 * 2 is 2/6. 2/6 is twice of 1/6 and 1/6 + 2/6 = 3/6. 2/6 in simplest form is 1/3. Balu ate 1/3 of a whole cake.

Answer:

Balu ate [tex]\frac{1}{3}[/tex]fraction of the whole cake

Step-by-step explanation:

Let x be the amount of cake eaten by Pumba

Balu got to eat twice as much cake as Pumba.

Balu eat cake = 2x

Balu and Pumba shared ½ of a cake.

So, [tex]2x+x=\frac{1}{2}[/tex]

[tex]3x=\frac{1}{2}[/tex]

[tex]x=\frac{1}{6}[/tex]

So, Pumba's share = [tex]\frac{1}{6}[/tex]

Balu's share = 2x =  [tex]\frac{2}{6}=\frac{1}{3}[/tex]

Hence Balu ate [tex]\frac{1}{3}[/tex]fraction of the whole cake

Jeanette and Leslie are trying to solve this problem: A camp counselor has a list of 134 campers who signed up for art class. The counselor can place 8 students in each class. How many classes does the counselor need to have?

*Please Show Work*

Answers

All you have to do is divide.
134/8
Which is about 16 or 17
All you have to do is divide 134 with 8 because 134 is the total and the camp counselor is dividing the class to eight students each and the answer is 16 R6. Since there is a remainder (6 more students) the camp counselor has to make another class which would be 17 as the answer.

Ling uses 21 bananas to make 7 fruit smoothies. What is the unit rate that Ling uses for bananas per each smoothie? What is the unit rate? Explain how to use equivalent fractions to find the answer

Answers

21/7 divide num and denominator by 7 u will get
3/1 so 3 smoothie is answer
21/7=3/1(equivalent fraction)

Answer:

The unit rate that ling uses for bananas per each smoothie is (3/1) bananas per smoothie

Step-by-step explanation:

Ling uses 21 bananas to make 7 fruit smoothies. Total of bananas B = 21. Total of smoothies S =7.

The unit rate U is the relationships B divided by S.

U = B/S

U = 21 bananas / 7 smoothies

U = 21/7 Bananas per smoothies.

We can use the equivalent fractions to find the unit rate. 21 can be expressed as 7*3. 7 can be expressed as 7*1. We can simplify the number 7 in numerator and denominator.

U = (7*3)/(7*1)

U = 3/1.

Finally, the unit rate is 3/1 bananas per smoothie. 

Which scatter plot shows a negative nonlinear association?






Answers

Answer:

The second option

Step-by-step explanation:

The answer is the second option because you can clearly see that it is nonlinear since there is no straight line, but you can still see it going at a negative rate.

Does 17/20 repeat or terminate

Answers

It terminates
Thankyaw (:
17/20 is a terminated decimal

hope this helps

write the numerical expressions in words then solve 10×(2.5+13.5)

Answers

two and five-tenths plus 13 and five-tenths times ten


and the answer is 160 

Hope i helped 

please mark me the brainliest
Add 2.5+13.5 then get that awencer. Then you do your awencer times 10

7/2 as an improper fraction

Answers

it already is an improper fraction, nothing can be done witht this question

Well first pal u have to make 7/2 to a mixed fraction before improper so FOR now lets make this a mixed fraction.

set up the long division
divide 7 and 2 which is 3 with a remainder of 1
since that's true make it a mixed fraction
FOR NOW its 3 1/2 

Now that's its a mixed fraction lets make it into a improper one

3 * 2 + 1/2

Now that was easy so simplify it.
Now the answer would be 7/2.


So basically this is already an improper fraction, 7/2 is 3 1/2 expressed as a improper fraction.

jamil has 3 pet lizards. the pet store owner said that jamil will need to buy a total of 36 crickets to feed his lizards if each lizard eats the numberbof crickts how many crickts does each lizard eat?

Answers

In order to do this, we need to look at the info.
Here is what we know:
Each lizard eats the same amount.
They need to buy 36 crickets.
There are three lizards.
What we need to know:
How many crickets does each lizard eat?
How to solve:
Divide 36 by three.
Math:
36/3 = 12.
Final answer:
Each lizard eats 12 crickets.
I think it’s 108 I hope I helped

I need help with this asap right now please

Answers

it is b hope this helps sorry

A. 403

47x31=1457
34x31=1054

1457-1054=403

how to find the answer to this
5g=230 HOW DO I FIND THIS PLZ HELP NOW

Answers

All you have to do is divide both sides by 5 so you can get the variable by itself. In this case, 230 divided by 5 is 46 making g=46
5g = 230

first isolate the g

5g/5 = 230/5 (remember to do the same thing to both sides)

g = 46

your answer is 46

hope this helps

A newly discovered planet has a mass of 4.8743 · 10 ^22 kilograms. It's estimated that there is water on the surface and that, the water's mass is only 4 · 10^ -2 percent of the planet's total mass. Use scientific notation to estimate the mass of the planet's water. In your final answer, include all of your estimates and calculations.

Answers

To estimate the mass of water on the planet with a mass of 4.8743 × [tex]10^{22[/tex] kg, you multiply this mass by[tex]4 * 10^{-2[/tex] percent converted to decimal (0.0004), giving a water mass of approximately 1.95 * [tex]10^{19[/tex]kg.

To estimate the mass of the planet's water, we first need to find 4% of the planet's total mass. We can do this by multiplying the planet's mass by the percentage as a decimal:

Mass of water = (4.8743 × 10^22 kg) × 0.04

Now, let's perform the multiplication:

Mass of water = 1.94972 × [tex]10^{19[/tex] kg

So, the estimated mass of the planet's water is approximately 1.95 ×  [tex]10^{19[/tex] kilograms.

Pls help me I really need it

Answers

The answer is Nice Belt

PLEASE HELP!

Sarah paints a straight line. The line is 13 1/2 ft long. She wants to divide the line into sections that are each 1/8 ft long. How many sections will the line be divided into?

Answers

First: 13 x 8 = 104
Second: 8/2 = 4 
Third: 104 + 4 = 108 
Your answer is 108


A film set designer is using white and colored tiles in a pattern to create paths of different lengths. If x is the length of the path in feet, the number of colored tiles needed to make it is calculated using the rule

(4x2y3)(3x2y2)

where y represents the number of white tiles.

Which simplified expression represents the number of colored tiles used for a path of length x feet?

7x4y5
7x4y6
12x4y5
12x4y6

Answers

(4x²y³)(3x²y²)

4·3=12
x²·x²=x·x·x·x=x∧4
y³·y²=y·y·y·y·y=y∧5

12x4y5 it is the right answer in the third option

It will help you :)

The simplified algebraic expression for the number of colored tiles used for a path(4x^2y^3)(3x^2y^2), is 12x^4y^5. Hence the correct option is 3,

Given the algebraic rule for determining the number of colored tiles ((4x2y3)(3x2y2)), we simplify this expression by multiplying the coefficients and then by adding the exponents for x and y (since they are the same base).

Multiply the coefficients: 4 x 3 = 12

Add the exponents for x: 2 + 2 = 4 (since x2  x  x2 = x2+2)

Add the exponents for y: 3 + 2 = 5 (since y3  x  y2 = y3+2)

Jodi went 54 miles on 3.5 gallons of gas, and she wants to know how far she can go on 9 gallons of gas. Which proportion would be useful to solve the problem?
A)
9
3
=
54
x
B)
9
54
=
x
3
C)
54
3.5
=
x
9
D)
54
9
=
3.5
x

Answers

54 (miles) / 3.5 (gallons) = x (miles) / 9 (gallons)

54/3.5 = x/9
80% of ____games is 32 games
sol'n:   0.80x = 32
                  x = 32/0.80
                  x = 40
Ans. 80% of 40 games is 32 games

75% of ____ peaches is 15 peaches
sol'n:    0.75x = 15
                   x = 15/0.75
                   x = 20
Ans:  75% of 20 peaches is 15 peaches

2 doctors is ____ % of 25 doctors
sol'n:   2 = 25x
           x = 2/25
           x = 0.08
Ans.:  2 doctors is 8 percent of 25 doctors

_____% of 200 miles is 150 miles
sol'n:    200x = 150
                  x = 150/200
                  x =0.75
Ans:     75% of 200 miles is 150 miles

60 minutes is 20% of ____ minutes
sol'n:     60 = 0.20x
              60/0.20 = x
               x = 300
Ans.: 60 minutes is 20% of 300 minutes

360 kilometers is 24% of ____ kilometers
sol'n:   360 = 0.24x
            360/0.24 = x
                x = 1500
Ans:   360 kilometers is 24% of 1500 kilometers

9 stores is 3% of ____ stores
sol'n:    9 = 0.03x
             9/0.03 = x
                x = 300
Ans.: 9 stores is 3% of 300 stores

Is 632 a multiple of 4

Answers

To know if a number is divisible by 4, look at the last two digits. If the number formed by last 2 digits is divisible by 4, then the number is divisible by 4.
In this number, the last two digits form the number 32. 32 is divisible by 4, so 632 is divisible by 4.

How many times can 4 go into 69

Answers

About 17 times. Just do 69/4
about 17.25 times because 4 time 16 is 64 and 17.25 times is 69
Other Questions
A baseball player got 102 hits in the last 300 times at bat. Explain how you would find the percent of times the baseball player got a hit out of the number of times at bat. What is the term for an organism that makes its own source of chemical energy? Sixteen more than a number is 48 which equation models this sentenceA 16n = r8B n - 16 = 48C n + 16 = 48D n 16 =48 Read this scenario:A high school soccer team wants to win the state championship. Together the players create a training plan and write a contract for each player to sign to express his or her commitment to the team goal. They face a lot of challenges through the season with unexpected losses and player injuries. They continue to work hard and encourage one another, and in the end, they win the championship.What is most likely the author's purpose in this story? A.To warn readers about the negative aspects of team sports B.To teach a lesson about teamwork and determination C.To express the importance of school sports D.To criticize the athletic department at a school What is the value of X?A. 15B. 30C. 45D. 60Will mark best answer as Brainliest!! PLEASE HELP I WILL GIVE BRAINLIEST Which substances will make a salt when combined? Vinegar and tea Soda and wine Soda and ammonia Fertilizer and detergent Due to an increase in her rent, Isa needs to cut back her spending on other items. Which of the following types of goods will Isa consume less of?A. SubstitutesB. Normal GoodsC. Inferior GoodsD. Complements Output all of the numbers and their squares between 1 and 10 using a do while loop In a study concerning gender differences in sexual attitudes and sexual behaviors, the males said that ideally they would like to have more than ____ sexual partners in their lifetime, while the women stated that ideally they would like to have only _____. how do you think the Mayflower Compact influence later governments in America? ~history~ Which september 1864 event helped lincoln win reelection as president that november? A 50kg meteorite moving at 1000 m/s strikes Earth. Assume the velocity is along the line joining Earth's center of mass and the meteor's center of mass. What is the gain in Earth's Kinetic Energy? given b(x)=|x+4| what is b(-10) Because men share less personal information and feelings than women, they are not capable of achieving the type of intimate relationships that women have. According to the Japanese religion of ______ everything has a spirt or a soul. a. Shinto c. Taika b. Buddhism d. Hinduism Mi rama de estudio es Derecho. Soy _________. _____ and Martha both dance very well. Which personal pronoun best completes the sentence? A. Her B. She C. Hers D. Me hich of these is a chemical property? Compressibility Flexibility Malleability Toxicity What is the contribution made to the development of the microscope by Charles Spencer?A. first to document careful observations of different cell typesB.identifying the first cell C. used mathematics to improve the focus of the lensD. created the first microscope E. discovered the electron microscopeF. built microscopes capable of magnification of up to 1250 x using regular light What is the range of f(x) = (3/4)^x 4 Steam Workshop Downloader