Question

Let X be a random variable which follows a Poisson distribution whose parameter is equal to...

Let X be a random variable which follows a Poisson distribution whose parameter is equal to 1 . Determine E (X | 4 <X <14).

Homework Answers

Answer #1

The distribution here is given as:

The conditional expected value of X here is computed as:

This is computed here as:

The probabilities in the above expression here are computed as:

The probabilities thus are computed here as:

X P(X = x) xP(X = x)
5 0.003066 0.015328
6 0.000511 0.003066
7 0.000073 0.000511
8 0.000009 0.000073
9 0.000001 0.000009
10 0.000000 0.000001
11 0.000000 0.000000
12 0.000000 0.000000
13 0.000000 0.000000
0.003660 0.018988

Therefore, the conditional expected value here is computed as:

Therefore 5.188238 is the required conditional expected value here.

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