Math Problem Solver

This table shows the number of merits receved one week by two year groups. $$\begin{bmatrix} number of merits & number of year 10 students & number of year 11 students \\\\ 0 & 3 & 5 \\\\ 1 & 8 & 6 \\\\ 2 & 15 & 12 \\\\ 3 & 19 & 15 \\\\ 4 & 18 & 17 \\\\ 5 & 15 & 14 \\\\ 6 & 0 & 0 \end{bmatrix}$$

what is the mean number of merits received by the year 10 students and the year 11 students in (1.D.P)