Letters were received in an office on each 100 days. Assuming the following data to form a random sample from a poisson distribution fit the distribution and calculate the exected frequecies.

Question:

Letters were received in an office on each 100 days. Assuming the following data to form a random sample from a poisson distribution fit the distribution and calculate the exected frequecies.

Numbers of Letters (x) 0 1 2 3 4 5 6 7 8 9 10
No. of days (Frequency) 21 4 15 22 21 20 8 6 2 0 1

Solution:

probability homework