The number of cars arriving at a given intersection follows a Poisson distribution with a mean rate

Question:

The number of cars arriving at a given intersection follows a Poisson distribution with a mean rate of 4 per second.

a. What is the probability that 3 cars arrive in a given second?

b. What is the probability that 8 cars arrive in three seconds?

c. What is the probability that more than 3 cars arrive in a period of two seconds?

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...
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