The distribution of the heights of a group of women has mean 66 inches and standard deviation

Question:

The of the heights of a group of women has mean 66 inches and standard deviation 2 inches. If a 66-inch-tall woman joins the group, will the standard deviation of the heights decrease, increase, or stay the same? Explain.
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...