The mean and the variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is:
128/256
219/256
37/256
28/256
As we learnt in
Binomial Distribution(Statistical) -
-
Binomial Distribution,
Similarly, n = 8
Thus, Probability of 2 Sucess i.e
Option 1)
128/256
Incorrect
Option 2)
219/256
Incorrect
Option 3)
37/256
Incorrect
Option 4)
28/256
Correct
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