Calculating Probability of Events

The spinner shown is spun. 
Find P(number less than 6).

• ⁶/₈ or 75%

• ¹/₈ or 12.5%

• ⁵/₈ or 62.5%

• ³/₈ or 37.5%

Cindy owns 7 t-shirts, 2 of which are gray. If Cindy randomly selects a t-shirt to wear, what is the probability it will be gray?

• 2/7

• 5/7

• 7/7

• 1/7

Gabby is picking out fabric for her bedroom. She has 20 fabric samples, and 8 of them are plaid. What is the probability that a randomly selected fabric sample will be plaid?

• 12/20

• 2/5

• 1/20

• 20

There are 15 pieces of fruit in a basket, including 3 oranges. What is the probability that a randomly selected piece of fruit will be an orange?

• 1/5

• 3/5

• 5/15

• 3/10

What is the probability of the spinner shown landing on a number greater than 2 but less than 7?

• 1/4

• 3/8

• 1/2

• 1/8

What is the probability of spinning a 2 on the spinner?

• 1/2

• 1/3

• 1/8

• 1/4

Probability can be written as a 

• fraction

• decimal

• percent

• all of the above

Probability is between which two numbers?

• 0-100

• 5-10

• 0-1

What is the probability of spinning red?

• 0

• 5/12

• 1/2

• 3/4

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing a letter other than “A”? 

• 2/7

• 5/49

• 5/7

• 10/49