Question

Q.19:In a Poisson Distribution, if
'n' is the number of trials and 'p'
is the probability of success, then
the mean value is given by?
m =
a) m = np
b) (np)2
m = np(1-P)
d) m = p
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Answer 1

Answer:

Step-by-step explanation:

Explanation: For a discrete probability function, the mean value or the expected value is given by

Mean(μ)=∑nx=0xp(x)

For Poisson Distribution P(x)=e−mmxx! substitute in above equation and solve to get µ = m = np.