a. The following table shows the probability distribution for the random variable X. i. Show that k

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a. The following table shows the probability distribution for the random variable X.

i. Show that k = 2.

ii. Calculate E(X ) and Var(X ).

iii. Find the probability that two independent observations of X have a sum of less than 6.

b. The following table shows the probability distribution for the random variable Y.

If one independent observation of each random variable is made, find the probability that X +Y = 3.

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

ISBN: 9781108407304

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Authors: Dean Chalmers, Julian Gilbey

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Question Posted: Sep 14, 2021 02:11 AM

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a. The following table shows the probability distribution for the random variable X. i. Show that k

Question:

Can 3 3 (*= y 3 k 10 1 20 20 2.

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Sol a 1As it is random distribution the sum of probability w...View the full answer

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

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