The part I am confused with is (c)
I found part (a) which is:
p(0) = 7/24, p(1) = 21/24, p(2) = 7/40 and p(3) = 1/120
How do we find the values for a and b, for part (c) ?
2026-04-01 03:38:12.1775014692
Expectation of Random Variable - Probability Worded Problem
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