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

Question:

Gender in two-child families. Refer to the Human Biology

(Feb. 2009) study on the gender of children in two-child families, Exercise 4.29

(p. 222). Recall that the National Health Interview Survey (NHIS) of almost 43,000 twochild 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. image text in transcribed