Two random samples were taken to determine how often people in a community listen to the local radio station each month.

The first sample surveyed 15 people as they exited the bank on Main Street. The first sample found that the mean number of hours they listened to the radio each month was 20.

The second sample surveyed every sixth person as they exited the only local grocery store until 100 people were surveyed. The second sample found that the mean number of hours they listened to the radio each month was 12.

Which statements are true? Check all that apply.
A. The second sample is random.
B. The second sample is likely to be more representative of the population.
C. The first sample is likely to be more representative of the population.
D. The second sample will give a better representation because is it larger.
E. The first sample will give a better representation because it is smaller.
F. Community members are more likely to listen to the radio station an average of 12 hours a month than 20 hours a month.

Answer:

1/5

Step-by-step explanation:

There are 3+5+2 = 10 marbles in the bottle

P(green) = number of green marbles/ total

               = 2/ 10 = 1/5

We will review each option and see that it corresponds:

-Volume is labeled with cubic units.

True, the units of volume are cubic, since it is distance to the cube.

-Surface area is labeled with cubic units.

False, the units of the area are square, since it is distance squared

-Volume of a prism is the product of the area of the base and height.

True, depending on the base, the volume of the prism is determined, therefore it would be the area of the base by the height.

-Surface area is the sum of the areas of each side.

True, the surface area corresponds to the sum of the lateral areas and the area of the base, that is, the area of each side.

-The volume of a prism is One-third the volume of a pyramid.

False, on the contrary, the volume of a pyramid is one third of the volume of a prism

Answer:

A

C

D

Step-by-step explanation:

Hope you guys have a good day!

One of these pics are proof and the other is to just make you smile :)

Answer:

160

Step-by-step explanation:

add the numbers together then divide by 8

Answer:

Hello!

You have to find the probabilities of these happening

To pick Mike the first time is a 1 /4 chance

To pick Tom after Mike is a 1 / 3 chance since you picked mike

To pick Chris after Tom is a 1 / 2 chance since there are only two friends left

To find the probability of these happening in a row you multiply them

1/4 * 1/3 * 1/2 = 1/24

The answer is 1/24

Hope this helps!

-Brinks

Answer:

1/8

Step-by-step explanation:

There is 8 letters to pick from. There is only one A. SO the probability would be 1/8.

Answer:

The answer is 1/8

Step-by-step explanation:

In the word MONASTIC there are 8 letters, and only 1 is an A which means that the chances of drawing that A is 1/ 8

Answer: On a coordinate plane, a curve crosses the y-axis at (0, 0). It has a maximum of 1 and a minimum of negative 1. it goes through 2 cycles at 8 pi.

Step-by-step explanation:

The function is y = sin(0.5*x)

We know that sin(0) = 0, so this graph must pass trough the point (0,0)

We know that the maximum of the sin(x) is 1, when x = pi/2. and the minimum is -1 when x = (3/2)*pi

but in our case the function is valuated in 0.5*x

then the maximum is when:

0.5*x = pi/2

x = pi/(2*0.5) = pi

and the minimum is when

0.5*x = (3/2)*pi

x = 3*pi

Now, knowing that sin(2*pi) = 0

The other 0 of the sin is when we have 0.5*x = 2*pi

x = 2*pi/0.5 = 4*pi

this means that in 4*pi we have one cycle, then in 8*pi we have tow cycles.

Then the correct option is:

"On a coordinate plane, a curve crosses the y-axis at (0, 0). It has a maximum of 1 and a minimum of negative 1. it goes through 2 cycles at 8 pi."

Answer:

d

Step-by-step explanation:

Answer:

$93,996

Step-by-step explanation:

i = prt

i = ($53,712)(.15)(5)

i = $40, 284

$40, 284 + $53,712

$93,996

Answer:

$92996

Step-by-step explanation:

Using the given formula :

I = P × R × T

I = 53712 × 15/100 × 5

I = $40284

He has = 40284 + 53712 = $93996

Answer:

A

Step-by-step explanation:

Answer no clue if u remember me but we was friends like last year over the summer. i found one our old conversations  on here. j wanted to say hi and check in :)

Step-by-step explanation:

Answer:

52

Step-by-step explanation:

39, 40, 44, 49, 50, 54, 56, 61, 62, 68

39, 40, 44, 49, 50, 54, 56, 61, 62, 68

[tex]\frac{50 + 54}{2}[/tex] = [tex]\frac{104}{2}[/tex] = 52

Answer:

52

Step-by-step explanation:

Answer:

surburu

Step-by-step explanation:

Answer:

B. [tex]\frac{3}{4}[/tex]

Step-by-step explanation:

I got this question correct. :)

P(Surfed|Snowboarded) = P(Surfed and Snowboarded) / P(Snowboarded)

P(B|A) = [tex]\frac{36}{48}[/tex] = [tex]\frac{3}{4}[/tex]

Apologies for lack of explanation, but I think this will do it.

Answer:

the answer is 6

Step-by-step explanation:

Answer: 22 2/3 feet

Step-by-step explanation:

From the question, a concrete company pours 8 sections of sidewalk each of which is 2 5/6 feet long. The length of the entire sidewalk that the concrete company pours will be calculated by multiplying 8 by 2 5/6 feet. This will be:

= 8 × 2 5/6

= 8 × 17/6

= 136/6

= 22 2/3 feet

Answer:

The answer is -4

Step-by-step explanation:

that would be because that is the answer

the correct answer is B.)  -4      

Answer:

B several

Step-by-step explanation:

The solutions are where the graphs intersect

It appears there are 3 points of intersection

Given the choices

It is more than one and less than infinite

Answer:

i think is 75

Step-by-step explanation:

Answer: 105

Step-by-step explanation:

3-2 is 180-75 which gives you the answer.

Answer:

A) 5830.95 B)59.04

Step-by-step explanation:

Solve for the hypotenuse of 5,000 and 3,000

Use tangent to find the angle

tanx = 5,000/3,000

x=59.04

The distance the plane has to travel to turn back is 5830.95 km.

The angle would the plane need to travel to return to its starting point is 59.04°

Solve for the hypotenuse of 5,000 and 3,000

Use tangent to find the angle

tanx = 5,000/3,000

x = 59.04

Height is the size of an object in the vertical course and distance is the measurement of an object from a specific factor in the horizontal route.

Learn more about Height and distance here: https://brainly.com/question/25638875

#SPJ2

Answer:

c=13

Step-by-step explanation:

You then square root both sides of the equation and the square root of 169 is 13.

Hope this helps! :)

Answer:

c is 13

Step-by-step explanation:

trust me bro

Answer: 1 minute 34 seconds

Step-by-step explanation:

From the question, Frankie was practicing for a 5 kilometer race and his normal time is 31 minutes and 24 seconds but yesterday he used 29 minutes and 50 seconds. To calculate how much time came of his normal time, we are going to find the difference between the yesterday's time and normal time. This will be:

31 minutes 24 seconds - 29 minutes 50 seconds = 1 minute 34 seconds

Answer:

The answer is B

Step-by-step explanation:

Answer:

There is a 1/3 chance of getting a hobbit, and a 0.1/11 chance of getting an umbrella.

Answer:

x+y= idk

Step-by-step explanation:

sorry i need the points

Answer:

15

Step-by-step explanation:

so you know that the hypotenuse for the triangle with "x"'s is 5 square root two, and because we know that the triangle is an isoceles triangle we know the other two side are equal and as a result x=5. Now for the next triangle it is 5 square root 2 on both sides and that is also an isoceles triangle and y is the hypotenuse so it 5 square root 2 times square root 2 which just becomes 2 so then it is 5 times 2 which is 10. So Y=10 and X=5 so X+Y=15.

Answer:

11

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

1 - Person already infected

10 - People who got the virus

1 + 10 = 11

Answer:

y=3

Step-by-step explanation:

Solve by subtracting

[tex]-6y + 17 = 3y -10\\-6y=3y-27\\-9y=-27\\[/tex]

Divide.

[tex]-9y=-27\\y=-27/-9\\y=3[/tex]

Answer:

3

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

x- 41.5 = 13.5

Step-by-step explanation:

The normal rate is x and the sick rate is 41.5

The difference is 13.5

x- 41.5 = 13.5

Answer:

It earned $12,771 more in December.

Step-by-step explanation:

This question can be solved using a rule of three.

During an average month, we have that 100% = 1 is $47,300.

During December, the amount is $x, and it is 100% + 27% = 127% = 1.27. So

1 - $47,300

1.27 - $x

x = 1.27*47,300

x = 60,071

It earned $60,071 in December.

Compared to other months, it earned $60,071 - $47,300 = $12,771 more in December.

Answer:

0.80x dolllars

Step-by-step explanation:

20% discount of the total amount is

0.20 * x dolllars

So if you start with x dollars you need to subtract the discount to get the new (lower ) price.

x - (0.20 * x) dolllars

1* x - 0.20 * x

x * 1 - 0.20 * x

x * ( 1 - 0.20 )

x * ( 0.80 )

0.80x dolllars

Answer:

$2.99 is the better buy

Step-by-step explanation:

First, find the unit price for each bag of pretzels. This can be found by the formula: (cost/amount). in this case it is (cost/ ounce)

This means:

0.99 bag for 4 ounces means about 25 cents per oz

2.99 bag for 15 oz means about 20 cents per oz

The lower the unit price, the better the buy.

Each ounce is cheaper with the 2.99 bag, therefore it is the better choice.