Question: Smoking by students and parents Here are data from a survey conducted at eight high schools on smoking among students and their parents:
![290_Smoking.png](https://secure.tutorsglobe.com/CMSImages/290_Smoking.png)
(a) How many students are described in the two-way table? What percent of these students smoke?
(b) Give the marginal distribution (in percents) of parents' smoking behavior, both in counts and in percents.