Homework Help is Here – Start Your Trial Now!
Math
Probability
The life span of a type of automatic washer is normally distributed with the mean of 3.8 years and standard deviation of 1.2 years. a. Probability that life span of randomly selected washer will be more than 3 years is b. The percent of the washers with the life span between 3.5 years and 4.5 years is_ c. The dealer wants only 2.5% of the washers to fail before the end of guarantee period. Then the length of guarantee period is years. Give the answer for number of years with one digit after decimal point.

The life span of a type of automatic washer is normally distributed with the mean of 3.8 years and standard deviation of 1.2 years. a. Probability that life span of randomly selected washer will be more than 3 years is b. The percent of the washers with the life span between 3.5 years and 4.5 years is_ c. The dealer wants only 2.5% of the washers to fail before the end of guarantee period. Then the length of guarantee period is years. Give the answer for number of years with one digit after decimal point.

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
See similar textbooks
icon
Related questions
Question

Can u solve this please

The life span of a type of automatic washer is normally distributed with the mean of 3.8 years and standard deviation of 1.2 years. a. Probability that life span of randomly selected washer will be more than 3 years is b. The percent of the washers with the life span between 3.5 years and 4.5 years is c. The dealer wants only 2.5% of the washers to fail before the end of guarantee period. Then the length of guarantee period is years. Give the answer for number of years with one digit after decimal point. F
Transcribed Image Text:The life span of a type of automatic washer is normally distributed with the mean of 3.8 years and standard deviation of 1.2 years. a. Probability that life span of randomly selected washer will be more than 3 years is b. The percent of the washers with the life span between 3.5 years and 4.5 years is c. The dealer wants only 2.5% of the washers to fail before the end of guarantee period. Then the length of guarantee period is years. Give the answer for number of years with one digit after decimal point. F
Expert Solution
steps

Step by step

Solved in 2 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
SEE MORE TEXTBOOKS