One in five teachers stated that he or she became a teacher because of the long summer

Question:

One in five teachers stated that he or she became a teacher because of the long summer vacations. Find the mean and standard deviation for the distribution of teachers who say they became teachers because of the long summer vacation.

The mean of a geometric distribution is μ = 1/p, and the standard deviation is σ = √q/p², where p = the probability of the outcome and q = 1 − p.

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...