In a scanning process, the number of misrecorded pieces information has a Poisson distribution with parameter

Question:

In a scanning process, the number of misrecorded pieces information has a Poisson with parameter λ = 9.2.
(a) What is the probability that there are between 6 and misrecorded pieces of information'.'
(b) What is the probability that there are no more than 4 misrecorded pieces of information?
(This problem is continued in Problem 5.6.10.)
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...