heh s group takes a survey to determine the education and income of its members Matrix A summarizes the proportions of members

Question

heh s group takes a survey to determine the education and income of its members Matrix A summarizes the proportions of members in various categories of years of ostsecondary education and income Matrix B shows the total number of members in each income category None 1 to 4 More than 4 Less than 50 000 0 75 0 25 0 Less than 50 000 50 000 to 100 000 Income level 50 000 to 100 000 0 20 0 40 100 000 or more 10 Total 4 20 a Calculate the product matrix AB 0 40 B 100 000 or more 0 0 20 0 80 A b Interpret the entries of the matrix AB Each entry gives the percentage of group members with the related amount of postsecondary education O Each entry gives the total percentage of group members in the relevant income bracket OEach entry gives the total income at the relevant education level O Each entry gives the number of group members with the related amount of postsecondary education alrot

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