Read information from a labelled data matrix
The matrix \(A\) below records the number of animals recorded during a wetland survey. Each row of the matrix is one animal and each column is one pond
Rows, in order: Frogs, Turtles
Columns, in order: Pond A, Pond B, Pond C
\[A = \begin{bmatrix} 9 & 12 & 6 \\ 9 & 12 & 4 \end{bmatrix}\]