Math 8 Review Probabilty & Statistics

Question 1

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

Accepted Answer

3

Question 2

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

Accepted Answer

$9.36

Question 3

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

Accepted Answer

3

Question 4

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

Accepted Answer

16.2

Question 5

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

Accepted Answer

1/10

Question 6

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

Accepted Answer

1/15

Question 7

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

Accepted Answer

2/121

Question 8

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

Accepted Answer

1/3

Question 9

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

Accepted Answer

6

Question 10

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

Accepted Answer

9/35

Question 11

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

Accepted Answer

1/4

Question 12

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

Accepted Answer

3/90

Questions 12