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a.5) The wear out times of a product have a normal distribution with a mean of 600 hours and a standard deviation of 20 hours. Determine the probability that such a product will have a wear out time of: i. ii. more than 660 hours fewer than 550 hours iii. between 550 and 670 hours

a.5) The wear out times of a product have a normal distribution with a mean of 600 hours and a standard deviation of 20 hours. Determine the probability that such a product will have a wear out time of: i. ii. more than 660 hours fewer than 550 hours iii. between 550 and 670 hours

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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a.5) The wear out times of a product have a normal distribution with a mean of 600 hours and a standard deviation of 20 hours. Determine the probability that such a product will have a wear out time of: i. ii. iii. i. more than 660 hours fewer than 550 hours b.5) The probability of an integrated circuit failing a quality test is 0.14 (binomial distribution). In a batch of 10 integrated circuits find the probabilities that: ii. between 550 and 670 hours 5 will fail atleast 2 will fail
Transcribed Image Text:a.5) The wear out times of a product have a normal distribution with a mean of 600 hours and a standard deviation of 20 hours. Determine the probability that such a product will have a wear out time of: i. ii. iii. i. more than 660 hours fewer than 550 hours b.5) The probability of an integrated circuit failing a quality test is 0.14 (binomial distribution). In a batch of 10 integrated circuits find the probabilities that: ii. between 550 and 670 hours 5 will fail atleast 2 will fail
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