If X is the random variable 'the sum of the scores on two tetrahedral dice', where the
Question:
If X is the random variable 'the sum of the scores on two tetrahedral dice', where the score is the number on which the die lands, find
(a) E(X),
(b) Var(X),
(c) Var(2X),
(d) Var(2x+3).
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Related Book For 
A Concise Course In Advanced Level Statistics With Worked Examples
ISBN: 9780748754755
4th Edition
Authors: J. Crawshaw, J. Chambers
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