A discrete random variable X, where X 2, 3, 4, 5 , is such that P(X x) (b x) 2 30 a Calculate the two possible values of b b Hence, find P(2 X 5) ...

a To calculate the two possible values of b we need to use the f ...

A discrete random variable X, where X {2, 3, 4, 5}, is such that P(X = x)

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A discrete random variable X, where X ∈{2, 3, 4, 5}, is such that P(X = x) = (b – x)²/30

a. Calculate the two possible values of b.

b. Hence, find P(2 < X < 5).

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

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Authors: Dean Chalmers, Julian Gilbey

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Question Posted: Sep 13, 2021 03:07 AM

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A discrete random variable X, where X {2, 3, 4, 5}, is such that P(X = x)

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

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