Given that X ~ B(n, p), E(X ) = 20 and Var(X ) = 12, find: a.

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Given that X ~ B(n, p), E(X ) = 20 and Var(X ) = 12, find:

a. The value of n and of p

b. P(X = 21).

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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 14, 2021 02:10 AM

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Given that X ~ B(n, p), E(X ) = 20 and Var(X ) = 12, find: a.

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E x 20 Varx 12 a Now E x V x E x 20 12 E x nP ...View the full answer

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

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