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The data set is designed for story for the death rates in Virginia (1940). The death rates are measured per 1000 population per year. They are cross-classified by age group (each row in the above graph) and population group (each column in the above graph).

(a) Please draw the following two graphs

(b) What else you can analyze for the data set? Please suggest and do it.


3. Here is a function that takes any number of vectors. Please interpret the meaning of the following codes in your own language.

2022-05-18