Question

The enrollment at Adams High School includes the following:



212 grade 10 girls
191 grade 10 boys
201 grade 11 girls
190 grade 11 boys
195 grade 12 girls
209 grade 12 boys




Which matrix correctly represents this enrollment data?




image.png

image.png

image.png

image.png

Answer 1

A natural way is a 3×2 matrix with rows = grades 10, 11, 12 and columns = girls, boys. That is:

[ [212, 191],
[201, 190],
[195, 209] ]

(If instead the rows are genders and the columns are grades, the corresponding 2×3 matrix would be
[ [212, 201, 195],
[191, 190, 209] ].)

Which of your four images matches the first matrix above?