Answer:
(i) Let X is the
random variable of ?number of heads?.
[Coin
is tossed one by one]
P (X = 1) = P
P(X = 2) = P(HH)
Probability
distribution is
(ii) S = {HHH,
HHT, HTH, THH, HTT, THT, TTH, TTT}
Let X is the
random variable ?number of tails?
Probability
distribution is
(iii) Let X is the
random variable of ?number of heads? X = 0, 1,
2, 3, 4
P(X = 0) = P
P(X = 1)
=
P(X = 2)
or
P (X = 3)
= P{HHH or HHH or HHHH or HHH}
P (X = 4) =
(HHHH)
Probability
distribution is
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