The lifetime of a computer circuit board is normally distributed with a mean of 2,500 hours and a standard deviation of 60 hours. What is the probability that a randomly chosen board will last at least 2,560 hours? O A. 16% O B. 34% O C. 50% D. 84%

The lifetime of a computer circuit board is normally distributed with a mean of 2,500 hours and a standard deviation of 60 hours. What is the probability that a randomly chosen board will last at least 2,560 hours? O A. 16% O B. 34% O C. 50% D. 84%

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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Question

Distributions 1 8 of 10
II P
The lifetime ofa computer circuit board is normally distributed with a mean of 2,500 hours and a standard deviation of 60 hours. What is the probability that a
randomly chosen board will last at least 2.560 hours?
O A. 16%
ов. 34%
о с. 50%
O D. 84%

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