An urn contains 10 balls. On each ball a number isnoted; we have {0, 1, 1, 1, 3, 4, 5, 5, 7, 8}. We draw a ball atrandom. If X is the random variable representing the numberobtained, find E(X) and Var(X).

An urn contains 10 balls. On each ball a number isnoted; we have {0, 1, 1, 1, 3, 4, 5, 5, 7, 8}. We draw a ball atrandom. If X is the random variable representing the numberobtained, find E(X) and Var(X).

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.8: Probability

Problem 6E

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Question

An urn contains 10 balls. On each ball a number is
noted; we have {0, 1, 1, 1, 3, 4, 5, 5, 7, 8}. We draw a ball at
random. If X is the random variable representing the number
obtained, find E(X) and Var(X).

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