Question

38. The p.m.f. of a r.v. X is,
P(x)
:
for x = 1, 2, ..., 15
15
= 0
:
otherwise.
Find E (X) and Var (X). Using these results find the
values of (i) E (2x - 3), (ii) Var (3X + 5), (iii) E (5 - 4X),
10-X
-3X v
2​

Answer 1

Come for S E X only GIRL s

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