Question

if for a poisson variable X,f(2)=3 f(4) what is the variance of x?​

Answer 1

Step-by-step explanation:

Distribution is Poisson

Poissan variable sd=2

What is p X>1.5and<2.9

Sd=2

V=2×2=4

X is Poisson (4)

NOW p(1.5<x<2.9)

P(2<_x<2)

P(x=2)

Poison Distribution is desrete distribution should assign descerte values 0 1 2 3 4 --

(

1.5<x<2.)

P(x=2)

=e^(-4)(4^(2) /2|.

=e^(-4)× 16÷2

= 8/e^(4)

8(e^(-4)= 0.183156882×8= o.14652 (nearest)

VALUE OF p(x=2)= 0.14652

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