The time between arrivals of vehicles at a particular intersection follows an exponential probability distribution with a

Question:

The time between arrivals of vehicles at a particular intersection follows an exponential probability with a mean of 12 seconds.
a. Sketch this exponential probability What is the probability the time between vehicle arrivals is 12 seconds or less?
c. What is the probability the time between vehicle arrivals is 6 seconds or less?
d. What is the probability there will be 30 or more seconds between arriving vehicles?

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...