Determine the probability of fewer than 6 successes for a random variable with a Poisson distribution with

Question:

Determine the probability of fewer than 6 successes for a random variable with a Poisson with parameter λ = 3.4.
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...