a random group of high school and college students were asked if they study with or without listening to music. the frequency table below shows the results of the poll. a 4-column table with 3 rows. the first column has no label with entries high school, college, total. the second column is labeled music with entries 68, 85, 153. the third column is labeled no music with entries 65, 51, 116. the fourth column is labeled total with entries 133, 136, 269. which statements are true? check all that apply. the table shows conditional relative frequencies by column. the table shows conditional relative frequencies by row. the conditional relative frequency that someone is in high school, given that the person prefers to study without music, is about 0.56. if someone prefers to study with music, the probability the person is in college is about 63%. if someone prefers to study with music, the probability the person is in hs is about 44%.

Answers

Answer 1

Answer:

The conditional relative frequency that someone is in high school, given that the person prefers to study without music, is about 0.56.  

If someone prefers to study music, the probability the person is in HS is about 44%.

Step-by-step explanation:

In the music column, we see that

total people who prefer to study with music =   153

high school students = 68

So, probability of high school students who study with music

= 68/153

= 0.44

= 44%.

College students = 85

Probability of college students who prefer to study with music

=  85/153

= 0.56

= 56%.

So, the correct statements are :

The conditional relative frequency that someone is in high school, given that the person prefers to study without music, is about 0.56.  

If someone prefers to study with music, the probability the person is in HS is about 44%.

Answer 2

Answer:

3 and 5

Step-by-step explanation:

2022


Related Questions

Whats x divided by negative 3?

Answers

Answer: -1/3

Step-by-step explanation:

Answer:

-[tex]\frac{x}{3}[/tex]

Step-by-step explanation:

If six model cars cost $12 what is the price for the model cars

Answers

Answer:

72 dollars

Step-by-step explanation:

all you do is multiply

Select the correct answer.
Consider functions f and g.
Which expression is equal to ?

A.

B.

C.

D.

Answers

Answer:

C

Step-by-step explanation:

f(x) • g(x)

= [tex]\sqrt{x^2+12x+36}[/tex] × (x³ - 12)

= [tex]\sqrt{(x+6)^2}[/tex] × (x³ - 12)

= (x + 6)(x³ - 12)

= x(x³ - 12) + 6(x³ - 12) ← distribute parenthesis

= [tex]x^{4}[/tex] - 12x + 6x³ - 72

= [tex]x^{4}[/tex] + 6x³ - 12x - 72

Answer:

See photo

Step-by-step explanation:

Plato/Edmentum


(2x-45)
nearpod is very difficult for me, my apologies

Answers

X= 75 if that’s what you’re looking for peep BTS

What is the value of b?

Answers

Answer:

b = 26

Step-by-step explanation:

As angles I and K are equal in the triangle, the sides opposing them should also be of the same length. Therefore, the value of b is equal to the side of the other side's measure, which is equal to 26.

If you earn $12 an hour and you work 40 hours a week, how much do you earn
a month? APEX

Answers

Answer:

160

Step-by-step explanation:

there are 4 weeks in a month and 40 * 4 is 160

please help me guys ​

Answers

Step-by-step explanation:

midpoint : it is the point in the middle marking half of the total distance.

therefore,

1)

EV = LE = LV/2

10 = 5m

m = 2

2)

LR = RO = LO/2

n + 4 = 12

n = 8

3)

LER and LVO are similar triangles. that means they have the same angles, and the ratio of one corresponding pair of lines or sides between both triangles is the same for all corresponding line pairs.

we know e.g. LE/LV = 1/2.

the same ratio applies then to ER/VO = 1/2 = 18/20p.

18/20p = 1/2

18 = 20p/2

2×18 = 20p

36 = 20p

p = 36/20 = 9/5 = 1.88888888888...

4)

VL = 2×EL = 2×10 = 20

5)

LO = 2×RO = 2×12 = 24

6)

as we have already calculated for 3) :

VO = 36

7)

36 + 20 + 24 = 80

8)

10 + 12 + 18 = 40

9)

remember, the and angles in similar triangles.

LVO = 52°

10)

all angles around a single point in one side of a line are together 180°.

in this case there are 2 angles around E : LER and VER.

VER = 180 - LER = 180 - 52 = 128°

Step-by-step explanation:

please mark me as brainlist please

Tickets to the zoo cost $12 for adults and $8 for children. The school has a budget of $240 for the field trip. An equation representing the budget for the trip is 240=12x+8y. Let 'x' by the number of adults and 'y' be the number of children. Here is a graph of this equation:

Select all the true statements (select 2)


Tickets to the zoo cost $12 for adults and $8 for children. The school has a budget of $240 for the field trip. An equation representing the budget for the trip is 240=12x+8y. Let 'x' by the number of adults and 'y' be the number of children. Here is a graph of this equation:



Select all the true statements (select 2)


If 16 adults go to the zoo, then 9 students can go.


If 8 more adults go to the zoo, that means there will be room for 12 fewer students.


If no adult chaperones were needed, 30 students could go to the zoo.


If ten students go to the zoo, then 15 adults can go.

Answers

Answer:

if no adult ones went, 30 students could go.

Step-by-step explanation:

If the cost of the student was 8, and there were 30 students going theoretically, this would be the most logical answer, since 8 multiplied by 30 is exactly 240

Consider a circle. The length of the arc for the central angle of 45 degrees is 16cm, then the total circumference (perimeter) of the circle is
a) 126cm
b) 128cm
c) 162cm
d) 182cm

Answers

Answer:

b

Step-by-step explanation:

the arc length is calculated as

arc = circumference (C) × fraction of circle , then

16 = C × [tex]\frac{45}{360}[/tex] = C × [tex]\frac{1}{8}[/tex] ( multiply both sides by 8 )

128 = C

circumference of circle is 128 cm

Four boys and five girls enter a contest at a local sports venue. A randomly chosen winner will be awarded a free ticket to a sporting event, a free T-shirt, a free water bottle, or a free autographed poster. What is the probability that a boy will win a free T-shirt

Answers

Answer:

4/9 or 45%

Step-by-step explanation:

There are 9 people in total, 4 boys so its 4/9, or 0.44444(repeating)

Round up to get 45%.

Answer:

4/9

Step-by-step explanation:

Find slope and y intercept

Answers

Answer:

slope is 1/4; y intercept is -2

Step-by-step explanation:

read your textbook carefully

you note that you are given two point the x-intercept and y-intercept:

(8,0) and (0,-2) respectively.

before doing exercise, you need to know what is the slope formula (read your book).

slope formula is the change in y over the change in x.

or you can perceive that slope mean when x move forward one unit, what is change in y( how many units the y move).

Hope help( read your textbook carefully)

Write an expression in simplest form to represent the perimeter of the triangle below.

Answers

Answer:

P= 11x - 25

Step-by-step explanation:

we just find the sum of the sides of the isosceles triangle. note that since it's an isosceles triangle so the unknown side is equal to 4x - 17

Mr. Tan's rectangular swimming pool has an area of (81x2 - 144y2) square feet. What are the dimensions of his pool?

Answers

Answer:

The pool dimensions are thus  (9x - 12y)(9x + 12y)

Step-by-step explanation:

(81x^2 - 144y^2) is the difference of two squares.  Note that you must indicate exponentiation with " ^ ."

Factoring the difference of two squares:  a^2 - b^2 = (a - b)(a + b)

Thus,  (81x^2 - 144y^2)  =

The pool dimensions are thus  (9x - 12y)(9x + 12y)

Area of rectangle is Length times of Breadth. The pool dimensions are  (9x - 12y) and (9x + 12y) when area of rectangular swimming pool is  (81x2 - 144y2)

area of Mr. Tan's rectangular swimming pool is (81x^2 - 144y^2), we need to find the area of rectangle.

What is area of rectangle?

Area of rectangle= Length*Breadth

The given area of Mr. Tan's rectangular swimming pool is (81x^2 - 144y^2),

(81x^2 - 144y^2)=Length * Breadth

We know that (a+b)(a-b)=a^2-b^2

So,

The factors of (9x^2-12y^2) is (9x+12y) and (9x-12y)

(9x^2-12y^2)=(9x+12y)(9x-12y)

=Length * Breadth

where length and breadth are two dimensions of rectangle

Therefore (9x+12y) and (9x-12y) are two dimensions of rectangle.

To learn more on area of rectangle click here:https://brainly.com/question/20693059

#SPJ2

Reema has a square backyard, each side of the backyard is 24 m. It cost AED 4 per sq m. to replace the brick wall around the courtyard. How much would it cost to replace the brick wall? Immersive Reader

Answers

Answer:

If it is a square courtyard and each side is 21 meters long, then how long is it all the way around? Take that number and multiply by $18 because each meter costs $18 to replace

Pls help me on this problem I’m confused

Answers

1 cup = 8 ounces

64 ÷ 8 = 8

he adds two sets of 8 cups of grape juice so 16 total

20 cups of ginger ale + 16 cups of grape juice

36 cups total

Answer:

36 cups

Step-by-step explanation:

8 oz = 1 cup

64 oz / 8 oz = 8 cups

8 cups + 8 cups (due to 2 bottles of 64 oz)

16 cups+ 20 cups

36 cups

Can someone help me

Answers

Answer:

yes I can help you with this work

95??? I’m not sure but it think it’s correct

What are the solutions for the equation 2cos0+1=0 ?

Answers

Answer:

2cos0=-1

cos0=-1/2

proved

what is the unit price at the print shop?

Answers

7.5 cents for black and white

picture / will give brainly 9th grade

Answers

Answer:

d

Step-by-step explanation:

1.50c+100=3.50c

HI will someone please help

Answers

Answer:

it would be 90, if you add 60 and 30 together you get 90! :')

Step-by-step explanation:

Solve for p.
p-3.1/6.7 = 4.5/5

Answers

Answer:

[tex]5x - 15.5 = 6.7 \times 4.5 \\ 5x = 30.15 - 15.5 \\ 5x = 14.65 \\ 2 .93[/tex]

what is the domain of the function?

what is the range of the function?

is this relation a function?
yes or no​

Answers

Answer:

no

Step-by-step explanation:

What should be added to 4c (– a + b + c) to obtain
3a (a + b + c) – 2b(a – b + c)?

Answers

Step-by-step explanation:

here hope it is helpful

the writing is not mine so yeah

I need help on this

Answers

Answer:

Rate of change is slope

To calculate slope its

y2 - y1 / x2- x1  = slope

Just choose 2 random sets from the table.

I’m gonna go with (0,-10) and (2,20)

Now calculate slope

20 - (-10) / 2 - 0

Solve.

30 / 2

30/2 = 15

Rate of change is 15

The graph of a linear relationship passes through (0, 3), and (3,9). Which is an
equation for this linear relationship? *

Answers

Answer:

C y=2x+3

Step-by-step explanation:

Answer:

C y=2x+3

Step-by-step explanation:

I WILL GIVE BRAINIEST TO WHO ANSWERS THIS!!!!!!!!! In each term, a new row of dots is added. Write the next 3 terms in the pattern.

read closely
An image of a pattern. Term one has fifteen dots in a triangle form, term two has twenty-one dots in a triangle form, term three has twenty-eight dots in a triangle form, the fourth term has thirty-six dots in a triangle form.

Answers

Answer:

42 48 56

Step-by-step explanation:

The triangles keep adding 6 6 8 so the answer should be that.

Pamela is 6 years younger than Jiri. The sum of their ages is 64. What is Jiro's age?

Answers

Let's use j to represent Jiri's age.

If Pamela is 6 years younger that Jiri, her age can be represented by j - 6.

Since the sum of their ages is 64, we can setup the equation j + (j - 6) = 64.

Simplifying on the left, we have 2j - 6 = 64.

Adding 6 to both sides, we have 2j = 70.

Dividing both sides by 2, we have j = 35.

So Jiri is 35 years old and Pamela is 6 years younger or 29 years old.

write an expression where you multiply a decimal by 100 in a complete sentence describe which direction and how many places does the decimal move??

Answers

Answer:

When you multiply a a decimal number by the integer 100 the decimal shifts only two places to the right.

Step-by-step explanation:

please check my answer. and if its wrong please tell me the correct answer and the way to do it..

Answers

I think it is none of the above, I am not sure though.

I am getting the answer= 15%

Since:

Total no. of students= 20

No. of students skateboarding= 3

Percentage= 3/20 X 100

= 15%

need help please snazzy fast

Answers

Answer:

-x and 6y

Step-by-step explanation:

They are present in the question.

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