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A survey indicates that people use their computers an average of 4.5 years before buying a new one. The standard deviation is 0.75 years. Assume the distribution is approximately normal. Find the proportion of computer users that use their computers for less than 2.5 years. type your answer..... Find the proportion of computer users that use their computers more than 6.25 years. type your answer.....

A survey indicates that people use their computers an average of 4.5 years before buying a new one. The standard deviation is 0.75 years. Assume the distribution is approximately normal. Find the proportion of computer users that use their computers for less than 2.5 years. type your answer..... Find the proportion of computer users that use their computers more than 6.25 years. type your answer.....

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A survey indicates that people use their computers an average of 4.5 years before buying a new one. The standard deviation is 0.75 years. Assume the distribution is approximately normal. Find the proportion of computer users that use their computers for less than 2.5 years. W type your answer... S Find the proportion of computer users that use their computers more than 6.25 years. Previous type your answer... # 3 X e d $ 54 с r f % 5 V t 9 A 6 b DELL y h & 7 O n ★ 8 m 9 alt O P ctri ? e + Next
Transcribed Image Text:A survey indicates that people use their computers an average of 4.5 years before buying a new one. The standard deviation is 0.75 years. Assume the distribution is approximately normal. Find the proportion of computer users that use their computers for less than 2.5 years. W type your answer... S Find the proportion of computer users that use their computers more than 6.25 years. Previous type your answer... # 3 X e d $ 54 с r f % 5 V t 9 A 6 b DELL y h & 7 O n ★ 8 m 9 alt O P ctri ? e + Next
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