Question

Question 2 :
If X ~ Poisson (4) then ratio of mean to the
variance is?​

Answer 1

Answer:

hdueb

Step-by-step explanation:

Find the median in the manner of the assumed median.

group fi

10-20 2

20-30 10

30-40 40

40-50 25

Answer 2

Concept:

The Poisson distribution is a discrete probability distribution that quantifies the likelihood of a specific number of events occurring in a specified span of time or space.

Given:

The mean is 4.

Find:

The ratio of mean to the variance of the Poisson distribution.

Solution:

In the Poisson distribution, the mean is equal to the variance of the distribution.

Mean = variance = 4.

Hence, the ratio of mean to the variance is 1.