Question

Use this spinner to answer questions 7-8. Present answers in
decimal form

7) What is the probability of the arrow coming to rest on 8 or 9?

8) What is the probability of getting a number under 4?

Answer 1

1) the probability is 0.2

Since there are 9 total and you are only finding the probability of 2 of the numbers you just divide 2 by 9 to get 0.22222.

2) 0.3 if you don’t include the 4 but 0.4 if you do

Divide 9 by 3 (9/3=0.3333)