Suppose that the distribution of the lifetime of a car battery produced by a certain car company is well approximated by a normal distribution with a mean of 1900 hours and variance 104. What is the approximate probability that a batch of 100 car batteries will contain at least 20 whose lifetimes are less than 1801 hours?
Suppose that the distribution of the lifetime of a car battery produced by a certain car company is well approximated by a normal distribution with a mean of 1900 hours and variance 104. What is the approximate probability that a batch of 100 car batteries will contain at least 20 whose lifetimes are less than 1801 hours?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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![Suppose that the distribution of the lifetime of a car battery produced by a certain car company is well
approximated by a normal distribution with a mean of 1900 hours and variance 104. What is the approximate
probability that a batch of 100 car batteries will contain at least 20 whose lifetimes are less than 1801 hours?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff316efbb-9e65-469e-bdde-f3c49a257ac3%2Faf507768-6070-45cf-8454-45e1d3febedb%2Fac5m2_processed.png&w=3840&q=75)
Transcribed Image Text:Suppose that the distribution of the lifetime of a car battery produced by a certain car company is well
approximated by a normal distribution with a mean of 1900 hours and variance 104. What is the approximate
probability that a batch of 100 car batteries will contain at least 20 whose lifetimes are less than 1801 hours?
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