Understanding Probability — Quiz

Question 8 • Grade 7 Mathematics

Which events have a probability of 25 percent? Choose three correct answers.

Answer

rolling a number less than 3 on a six-sided die

choosing a green jelly bean out of a bag that contains 2 green jelly beans, 1 red jelly bean, and 5 yellow jelly beans

choosing an Oregon state quarter out a bag that contains 4 California state quarters, 3 Oregon state quarters, 6 Texas state quarters, and 3 New York state quarters

spinning a number less than 2 on a spinner that has four equal sections numbered from 1 to 4

choosing a spade out of a standard deck of cards that contains 13 hearts, 13 clubs, 13 diamonds, and 13 spades

Explanation

A probability of 25 percent is the same as 1 out of 4. For B, 2 green jelly beans out of 8 total gives 2/8 = 1/4. For D, only one of the four equal sections shows a number less than 2, so the probability is 1/4. For E, 13 spades out of 52 cards gives 13/52 = 1/4.

AI-written and checked against the verified answer.

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