Construct a matrix from labelled information or an entry rule
The matrix \(B\) represents the number of books recorded for each genre and month. The numerical entries are given in the table below
| Genre / Month | January | March | February |
|---|---|---|---|
| Fantasy | 3 | 3 | 7 |
| Crime | 3 | 2 | 1 |
For the required matrix, rows are ordered as Fantasy, Crime and columns are ordered as March, February, January. The category labels are headings, not numerical entries