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For a certain type of computers, the length of time between charges of the battery is normally distributed with a mean of 50 hours and a standard deviation of 13 hours. John owns one of these computers. 29. How many standard deviations away from the mean is a battery that last 30 hours? 30. What is the probability that his will charge will last between 50 and 70 hours? 31. What is the probability that his charge will last less than 40 hours? 32. What is the probability that his charge will last more than 70 hours? 33. What is the cut off for an unusually short time for a charge to last? 34. What is the cut off for an unusually long time for a charge to last? dec dec dec -1.538 % % % units units

For a certain type of computers, the length of time between charges of the battery is normally distributed with a mean of 50 hours and a standard deviation of 13 hours. John owns one of these computers. 29. How many standard deviations away from the mean is a battery that last 30 hours? 30. What is the probability that his will charge will last between 50 and 70 hours? 31. What is the probability that his charge will last less than 40 hours? 32. What is the probability that his charge will last more than 70 hours? 33. What is the cut off for an unusually short time for a charge to last? 34. What is the cut off for an unusually long time for a charge to last? dec dec dec -1.538 % % % units units

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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For a certain type of computers, the length of time between charges of the battery is normally distributed with a mean of 50 hours and a standard deviation of 13 hours. John owns one of these computers. 29. How many standard deviations away from the mean is a battery that last 30 hours? 30. What is the probability that his will charge will last between 50 and 70 hours? 31. What is the probability that his charge will last less than 40 hours? 32. What is the probability that his charge will last more than 70 hours? 33. What is the cut off for an unusually short time for a charge to last? 34. What is the cut off for an unusually long time for a charge to last? dec dec dec -1.538 % % % units units
Transcribed Image Text:For a certain type of computers, the length of time between charges of the battery is normally distributed with a mean of 50 hours and a standard deviation of 13 hours. John owns one of these computers. 29. How many standard deviations away from the mean is a battery that last 30 hours? 30. What is the probability that his will charge will last between 50 and 70 hours? 31. What is the probability that his charge will last less than 40 hours? 32. What is the probability that his charge will last more than 70 hours? 33. What is the cut off for an unusually short time for a charge to last? 34. What is the cut off for an unusually long time for a charge to last? dec dec dec -1.538 % % % units units
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