Question

In a certain Poisson frequency distribution, the probability corresponding to two success is half the probability corresponding to three successes. The mean of the distribution is
a) 6
b) 12
c) 3
d) 2.45​

Answer 1

Answer:

Correct option is

C

6

According to question

P(X=3;μ)=32P(X=4;μ)

3!e−μμ3=324!e−μμ4

=> 6e−μμ3=36e−μμ4

=> e−μμ3[61−36μ] 

=> μ=0 or μ=636=6

Step-by-step explanation:

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