Refer to the Human Biology (Feb. 2009) study on the gender of children in two-child families, Exercise

Question:

Refer to the Human Biology (Feb. 2009) study on the gender of children in two-child families, Exercise 4.29 (p. 194). Recall that the National Health Interview Survey (NHIS) of almost 43,000 two-child families yielded the following table. You used this information in Exercise 4.29d to find the probability distribution for x, the number of boys in a two-child family. Find E(x) and give a practical interpretation of its value.

Gender Configuration _________ Proportion

Girl-girl (GG) ......................... .222

Boy-girl (BG) ......................... .259

Girl-boy (GB) ......................... .254

Boy-boy (BB) ......................... .265

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...