The expected value of the sum of two numbers obtained when two fair dice are rolled is _____.
Q.4 (A) (vi) The expected value of the sum of two numbers obtained when two fair dice are rolled is _____.
A. 5
B. 6
C. 7
D. 8
1 answer
Best answer
Answer: C. 7
Answer: (c) 7
For one fair die \(E(X)=\frac{1+2+3+4+5+6}{6}=3.5\). For the sum of two dice, \(E(X_1+X_2)=3.5+3.5=7\).
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· 28 Oct 2026
AI-verified · Oct 2026
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