Name:    Lesson 6: Comparing Theoretical and Experimental Probabilities

1.

Leah dropped 2 coins simultaneously.  She recorded her results on the table below.

 h-h t-t h-t t-h t-t t-h h-t h-t t-h t-t t-h h-h t-t h-h t-h h-t h-t t-t h-h t-h t-t h-h t-h h-t t-h h-h t-t h-h t-h h-t

What is the theoretical probability that Leah will flip two heads?
 a. 1/4 b. 0.5 c. 0.75 d. 40%

2.

What is the theoretical probability that Leah will flip 2 tails?
 a. 0.25 b. 1/2 c. 75% d. 2/5

3.

What is the theoretical probability that Leah will flip either a heads or a tails?
 a. 25% b. 50% c. 3/4 d. 0.4

4.

What is the experimental probability that Leah flipped two heads?
 a. 0.4 b. 7/30 c. 50% d. 0.8

5.

What is the experimental probability that Leah flipped two tails?
 a. 0.25 b. 30% c. 1/3 d. 7/30

6.

What is the experimental probability that Leah flipped a tails and a heads?
 a. 16/30 b. 0.4 c. 30% d. 0.65

7.

If you randomly selected a number from 1-100, what is the theoretical probability that the number is even?
 a. 0.5 b. 25% c. 0.75 d. 1/3

8.

If you randomly selected a number from 1-100, what is the theoretical probability that the number is a multiple of 5?
 a. 0.4 b. 30% c. 20% d. 1/3

9.

If you randomly selected a number from 1-100, what is the theoretical probability that the number is a multiple of 10?
 a. 10% b. 0.2 c. 4/10 d. 30%

10.

If you randomly selected a number from 1-100, what is the theoretical probability that the number contains a 3?
 a. 20% b. 0.19 c. 0.5 d. 1/6