At a high school, the probability that a student is a senior is 0.20. The probability that a student plays a sport is 0.15. The probability that a student
IS a senior and plays a sport is 0.05.
What is the probability that a randomly selected student plays a sport, given
that the student is a senior?
A. 0.33
B. 0.05
C. 0.25
D. 0.15

Answers

Answer 1

Answer:

Choice C

Step-by-step explanation:

Conditional Probability formula

P(B | A) = [tex]\frac{P(A and B)}{P(A)}[/tex]

P(B | A) = Probability of event B, given probability of event A

P( A and B) = Probability of event A and event B = 0.05

P(A) = Probability of event A = 0.20

P(B | A) = [tex]\frac{0.05}{0.20}[/tex]

P(B | A) = [tex]\frac{1}{4}[/tex] = 0.25


Related Questions

help me please !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

?

Step-by-step explanation:

with what

Answer:

120

Step-by-step explanation:

I got 120 because the width of the diamonds are 30. (180 - 150)

We can make sure that is correct by checking all the other pyramids.

anyways, we have 30 60 90 120 150 for all our pyramids. So the answer is indeed

120

Suppose that 21 inches of wire costs 84 cents.
At the same rate, how much in cents) will 47 inches of wire cost?

Answers

Answer:

44 cents

Step-by-step explanation:

First we need to find out how much per inch so do 84 divided by 21 which is 4 then get the closest to the number 47 which is 44 so 4x11=44 cents I'm not sure if it's right tho

What is the volume of this rectangular prism? 1/2, 4, 3/2

Answers

I’m guessing that the answer is 3
( I don’t see anything)

A trapezoid has of parallel sides

Answers

Answer:

True

Step-by-step explanation:

False. A trapezoid has one pair of parallel sides, not two pairs.

A trapezoid has only one pair of parallel sides.

The definition of a trapezoid states that it is a quadrilateral with exactly one pair of parallel sides.

The non-parallel sides of a trapezoid are called legs, and the parallel sides are referred to as the bases.

So, a trapezoid can have two pairs of sides that are parallel to each other, but only one of those pairs is considered as the bases.

To learn more on Trapezoid click:

https://brainly.com/question/32048079

#SPJ4

True or False: A trapezoid has two pairs of parallel sides. Explain your answer.

Greg and Justin went for a bike ride through a park. They started their ride near the pond at 2:47. They rode until they reached the soccer field 21 minutes later. What time was it when Greg and Justin reached the soccer field? 3:08 9:52 3:52 3:18 Submit

Answers

Answer: 3:08

Step-by-step explanation:

They started riding at 2:47 and reached the soccer field 21 minutes later.

The time they go to the field is therefore:

= 2:47 + 21 minutes

= 3:08

Adding time:

First find out the number of minutes needed to take 2:47 to 3:00:

= 60 minutes in an hour - 47

= 13 minutes

Then remove the 13 minutes from the 21 minutes of riding:

= 21 - 13

= 8 minutes

Add this 8 to 3:00:

= 3 + 8

= 3:08

Jaime says that the value of -1 x n is always equal to the value of n = (-1) for all
values of n.
Explain whether Jaime is correct or incorrect.

Answers

He is incorrect because if you use a positive number for n then the answer is negative vice versa

I did bad but what's the answer for this?

Answers

Answer:

28 degrees

Step-by-step explanation:

A triangle is always equal to 180 degrees so add the degrees together

40+2x+3x=180

40+5x=180

5x/5=140/5

x=28

please answer correctly. i will give brainliest!!

Answers

I'm pretty sure its just the last 3

On a hike, Oscar's elevation change after 12 minutes was-84 feet. Assuming his elevation was changing at a constant rate, what integer represents his elevation change per minute?​

Answers

Answer: -7

Step-by-step explanation:

From the information given, we are.l told that Oscar's elevation change after 12 minutes was -84 feet.

Since his elevation was changing at a constant rate, his elevation change per minute will be:

= -84 feet / 12

= -7feet/minutes

Therefore, the integer is -7.

At age 23​, someone sets up an IRA​ (individual retirement​ account) with an APR of ​7%. At the end of each month he deposits ​$75 in the account. How much will the IRA contain when he retires at age​ 65? Compare that amount to the total deposits made over the time period.

Answers

Answer:

The ira will contain $228,278.05 when he retires at age 65. This is 6.04 times the amount of money he deposited.

Step-by-step explanation:

In order to solve this problem, we can make use of the following formula:

[tex]FV=PMT[\frac{(1+i)^{n}-1}{i}][/tex]

Where:

FV= Future value of the ira

PMT= the amount of money you deposit each month

i= is the interest rate per period

n=number of periods

in this case we will assume the interest will be compounded each month.

So:

FV this is what we need to know.

PMT= $75  the amount he will deposit each month

t = 42 years,

this is 65-23=42

n=42 years * 12 months/year = 504 months

i=0.07/12

So we can now use the given formula:

[tex]FV=PMT[\frac{(1+i)^{n}-1}{i}][/tex]

[tex]FV=75[\frac{(1+\frac{0.07}{12})^{504}-1}{\frac{0.07}{12}}][/tex]

So we get:

FV=$228,278.05

which is the amount of money he will have after 42 years.

In total, he deposited:

$75*504months = $37,800

so he will have:

[tex]\frac{228,278.05}{37,800}=6.04[/tex] times the amount of money he deposited throughout this time.

hallar el numero de intervalo de
33 - 11= 22

Answers

Answer:

22=22

Step-by-step explanation:

33-11

22

22=22

The graph of f(x) = 3 . 2*-3 is shown below. g(x) is a transformation of f(x).
How would you write the equation for the function g(x)?

Answers

Answer: (c)

Step-by-step explanation:

Given

Function [tex]f(x)[/tex] is [tex]3\times 2^x-3[/tex]

Also, [tex]g(x)[/tex] is the transformation of [tex]f(x)[/tex]

From the graph, it is clear that [tex]g(x)[/tex] passes through the point [tex](0,5)[/tex]

Now check the option which satisfies the condition

option (c) seems to obey it

[tex]g(x)=3\cdot 2^x+2\\g(0)=3\cdot 2^0+2\\g(0)=3\cdot 1+2\\g(0)=3+2\\g(0)=5[/tex]

Therefore, option (c) is correct.


In 3 hours, Fast Eddy performed 21 663 loops with his yo-yo. How manyloops could he do in 8 hours at this rate?
57 768
58 738
59 348
56 588

Answers

Answer:

58 738

Step-by-step explanation:

Hope this helps!

Answer: 57 768

Step-by-step explanation:

None needed you'll thank me later

Please please help me please!!!!!!! URGENT!!!!

Answers

Answer:

the answer is 25 so yeah hhhhh

Evaluate 2^5 divides 4^2

Please answer ASAP. 50 points. No files/doc

Just explanation and answer

Answers

i have no idea i’m sorry

Answer:

2

Step-by-step explanation:

2^5/4^2

32/4^2

32/16

2

can u guys help me with this

Answers

Answer:

Step-by-step explanation: Finding the height can be solved using a simple formula using the length of the base and the area. You should multiply length times area! hope this helps.

A farmer is fencing off his field. A diagram is given and shows how the field has been divided into two regions. Find the perimeter of the entire field. Reaction 1 has length 530 feet and width 526 feet. Region 2 has length 974 feet and width 526 feet. a. 2556 ft c. 4052 ft b. 4060 ft d. 5112 ft

Answers

Answer:

the answer is B 4060 ft

Step-by-step explanation:

the answer is B have a nice day

What is the volume of the rectangular prism?

Answers

V=whl which mean length,weight,height

Which describes the number and type of roots of the equation x^3 + 121x = 0?
a. 2 real roots, 1 imaginary root
b. 1 real root, 2 imaginary roots
c. 3 real roots
d. 3 imaginary roots

Answers

Answer:

b; 1 real root and 2 imaginary roots

Step-by-step explanation:

From here, we have

x(x^2 + 121) = 0

x = 0 (1 real root)

or

x^2 + 121 = 0

x^2 = -121

x = √(-121) (2 imaginary roots)

so is would be two complex numbers from above

What is the exact side length of a cube that
has a volume of 10 cubic units?

Answers

Answer:

[tex] {x}^{3} = 10 \\ x = \sqrt[3]{10} [/tex]

Answer:

2.1544 units

Step-by-step explanation:

This side length can be found by finding the third root of the cube:

side length = {10 units^3}^{1/3)  = 2.1544 units

Note:  as a check we can cube this result:  2.1544^3 = 10

help 5 ratee????????????

Answers

The measure of the other a he is 55 degrees

How do you solve this? I really don't understand...

Answers

Answer:

MEAN 5.8 add all the points up then divide by the number of dots

MEDIAN 5 the middle of the data

MODE 5 most accruing one

RANGE 7 maximum minus minimum

How to find the height of the cylinder without volume

Answers

Using the Pythagorean theorem


Is this the right answer?

Answers

Answer:

yes

Step-by-step explanation:

10 is half of 20 but the equation is 11/20 therefore 11/20 is greater than 10/20=1/2

Select the ordered pairs that are part of the
solution set of this system of inequalities.

Answers

Answer:

ye boy

Step-by-step explanation:

Answer:

the second one, I asked my Kids.

Ill give brainliest - please help ASAP

WITH THE WORK THO PLEASE?

Answers

Answer:

Angles formed by intersecting chords are;

<KLU=½(arc KL+arc UM)=½(165+65)=115°

2.

<EFG=½(arc EF+arc PD)

128=½(206+arc PD)

arc PD=128×2-206=50°

3.

<SQR=½(arc(SR+TU))=½(51+165)=108°

4/

<MkL=½(arc(LM+QN)

105×2=155+arc QN

arc QN=210-155=55°

Step-by-step explanation:

wjwhsheueii

please help me with this problem!!

Answers

Answer:B hope this helps! :D

Step-by-step explanation:

the product of a number and two more than the number .. what is the expression?

Answers

the expression would be (n+2)n

FIND THE VOLUME ILL GIVE BRAINLIEST

Answers

1454.13 ( the 3 is infinite) mm^3

Step-by-step explanation:

1/3 × 13.3 × 16 × 20.5 = 1454.13 ( the 3 is infinite, I don't know how to put a line over a number on here)

I hope this helps, have a good day!

determine the equation of the line which has a graident 4 passing through (3,-2)​

Answers

(y-y1)=m(x-x1)
y-(-2)=4(x-3)
y+2=4x-12
y=4x-14
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