25. A survey found that people ke deviation is 0.56 year. If a pers

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 23SGR
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25. A survey found that people keep their microwave ovens an average of 3.2 years. The standard
deviation is 0.56 year. If a person decides to buy a new microwave oven, find the probability that
he or she owned the old oven between 2 to 3 years. Assume the variable is normally distributed.
34.32%
21.24
24.35%
31.24%
Transcribed Image Text:25. A survey found that people keep their microwave ovens an average of 3.2 years. The standard deviation is 0.56 year. If a person decides to buy a new microwave oven, find the probability that he or she owned the old oven between 2 to 3 years. Assume the variable is normally distributed. 34.32% 21.24 24.35% 31.24%
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