Math 8 - Scatterplots, Probability

Question 1

Based on the graph, what is the mean hourly of the 25 employees?

Accepted Answer

$9.36

Question 2

What is the mean of the following numbers? 13, 12, 19, 22, 15

Accepted Answer

16.2

Question 3

Find the mode of the following numbers: 5, 3, 2, 2, 1, 3, 5, 4, 3

Accepted Answer

3

Question 4

Based on the graph, which two consecutive years was the increase in Anna's height the greatest?

Accepted Answer

10 and 11 years

Question 5

Which of these best describe the relationship of the data shown in the scatterplot?

Accepted Answer

No Relationship

Question 6

Find the median of the following numbers: 5, 3, 2, 2, 1, 3, 5, 4, 3

Accepted Answer

3

Question 7

The distance one lives from school and the length of the school day

Accepted Answer

No Correlation

Question 8

The number of miles driven and the amount of gas remaining in the car

Accepted Answer

Negative Correlation

Question 9

A box contains 3 red, 6 blue, and 1 white marble. Without replacement, find P( red or white).

Accepted Answer

4/10

Question 10

What observations could be made about the given scatterplot?

Accepted Answer

Anna's height increases, while her age increases.

Question 11

Find P(Spinning P and rolling an even number).

Accepted Answer

1/10

Question 12

Eleven letters spelling PROBABILITY are placed in a bag. Replacing it, find P(P and I).

Accepted Answer

2/121

Question 13

A person's height and a person's shoe size

Accepted Answer

Positive Correlation

Question 14

Two fair coins are flipped at the same time. What is the probability that both displays tails?

Accepted Answer

1/4

Question 15

A box contains 3 red, 6 blue, and 1 white marble. Without replacement, find P(white and blue).

Accepted Answer

1/15

Question 16

A box contains 3 red, 6 blue, and 1 white marble. Without replacement, find P(blue and blue).

Accepted Answer

1/3

Question 17

What is the range of the following numbers: 22, 23, 24, 25, 26, 27, 28

Accepted Answer

6

Question 18

A box contains 9 new lights and 6 used. Without replacing, what is the P(new, then used)?

Accepted Answer

9/35

Question 19

Which best describes the relationship between Marvin's age and his time to run a mile?

Accepted Answer

As his age increased, his time decreased.

Question 20

What is the probability that a 6 will be selected from Set A and a 5 from Set B?

Accepted Answer

1/20

Questions 20