Answered: The number of surface flaws in plastic…

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

The number of surface flaws in plastic panels used in the interior of
automobiles has a Poisson distribution with a mean of 0.05 flaws
per square foot of plastic panel. Assume an automobile interior
contains 15 square feet of plastic panel.
A) What is the probability that there are no surface flaws in an
auto's interior?

B) How many automobiles should be examined on the average
to obtain the first one with surface flaws in the auto's interior?

C) if100 cars are sold to a rental company, what is the probability
that at least 45 of them have any surface flaws? Hint:
use approximate normal distribution

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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