In a certain county, the proportion of voters in each age group registered as Republicans, Democrats, or
Question:
In a certain county, the proportion of voters in each age group registered as Republicans, Democrats, or Independents is given by the following matrix, which we’ll call A.
The distribution, by age and gender, of this county’s voting population is given by the following matrix, which we’ll call B.
a. Calculate the product AB.
b. How many female Democrats are there?
c. How many male Republicans are there?
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