Electrical Engineering > GATE 2021 > Probability
Suppose the probability that a coin toss shows "head" is p, where 0<p<1. The coin is tossed repeatedly until the first "head" appears. The expected number of tosses required is
A
p/(1-p)
B
(1-p)/p
C
1/p
D
1/p2

Correct : c

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coin toss probability expected value coin toss GATE Electrical Engineering 2021 electrical engineering gate first head probability expected tosses head GATE 2021 question 37 probability head toss

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