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An unbiased coin is tossed 4 times. Find the mean and variance of number of heads obtained.

+1 vote

asked Mar 4, 2019 in JEE by kratos

An unbiased coin is tossed 4 times. Find the mean and variance of number of heads obtained.

binomial distribution
class-12
jee main 2020
probability distributions

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1 Answer

+2 votes

answered Jan 5, 2021 by kratos

Best answer

Given n= 4

Getting p = 1/2 and q = 1/2

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