Probability
Pretest


Use the following balls for questions 1-4.


1. What are the possible outcomes for these balls?
a. red, green, blue, yellow
b. red, green, yellow
c. red, blue
d. red, yellow, purple

2. Are all of the outcomes equally likely?
a. yes
b. no

3. What is the probability of drawing a green ball?
a. 1/4
b. 3/6
c. 2/6
d. 1/6

4. What is the probability of drawing a yellow ball?
a. 2/6
b. 3/6
c. 1/6
d. 4/6
Use the following spinner for questions 5-8.


5. If you were to spin this spinner, what are the possible outcomes?
a. 1,2,3
b. 4,5,6
c. 2,6,8
d. 8,9

6. Are all of the outcomes equally likely?
a. yes
b. no

7. What is the probability of spinning an 8?
a. 2/4
b. 3/4
c. 1/4
d. 0/4


8. What is the probability of spinning a 6?
a. 2/4
b. 3/4
c. 1/4
d. 0/4

9. What are the possible outcomes when flipping a coin?
a. heads, tails
b. heads
c. tails
d. faces, feet

10. Are the outcomes in a coin flip equally likely?
a. yes
b. no


Please print out your pre test. Click here to see answers!