a) What type of random experiment it is i.e. is it a binomial or hypergeometric? Give reasons to support your answer. b) Find the probability that a sample contains 2 non defective gaskets. c) Find the expectation and variance of success in a sample of size 15.
a) What type of random experiment it is i.e. is it a binomial or hypergeometric? Give reasons to support your answer. b) Find the probability that a sample contains 2 non defective gaskets. c) Find the expectation and variance of success in a sample of size 15.
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
A batch of 15 rocker cover gaskets contains 6 defective gaskets. If we draw samples of size 4 without
replacement, from the batch of 15, then answer the following questions:
a) What type of random experiment it is i.e. is it a binomial or hypergeometric? Give reasons to
support your answer.
b) Find the probability that a sample contains 2 non defective gaskets.
c) Find the expectation and variance of success in a sample of size 15.
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