Find the mean and the variance of the discrete random variable X, whose probability distribution is given

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Find the mean and the variance of the discrete random variable X, whose probability distribution is given in the following table.

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Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

ISBN: 9781108407304

1st Edition

Authors: Dean Chalmers, Julian Gilbey

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Question Posted: Sep 13, 2021 03:07 AM

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Find the mean and the variance of the discrete random variable X, whose probability distribution is given

Question:

1 2 3 P(X =x) 1-k 2- 3k 3-4k 4- 6k %3D

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To find the mean and variance of a discrete random variable we use the foll...View the full answer

Cambridge International AS & A Level Mathematics Probability & Statistics 1 Coursebook

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