quiz grades for groupA                          avg        %
4978-439 12 10  9 15 10 11                      12.00     48.00
7468-519  0  0  0  0  0  0                       0.00      0.00
1225-401 20  6 17  6  5 13                      14.00     56.00
4755-827  0  0 15 15 11  0                      10.25     41.00
2238-844 12  0  6  6  0  0                       6.00     24.00
7417-337 12  0  0  0  0  0                       3.00     12.00
1273-811 25 25 25  0 23  0                      24.50     98.00
4842-935 23  0  0  0  0  0                       5.75     23.00
0201-166 17  8 20 21 10  5                      17.00     68.00
2158-922 19 19 22 21 24 16                      21.50     86.00
2436-198 13 11  6 11  5  6                      10.25     41.00
1613-115 15 23 11  0  0  0                      12.25     49.00
7421-549  9  0  8 10  0  0                       6.75     27.00
5509-256 14 12  0 12  0  0                       9.50     38.00
6729-177  8 19 10  0  0  0                       9.25     37.00
the average was computed with  2 drops