Answer to Question #84128 in Algebra for Ra

Question

The following table gives the yield of a hybrid variety of wheat, in quintals per acre from 17 trial plots of land treated with four types of fertilizers :
Treatment with fertiliser
A B C D
24 31 39 38
39 25 41 32
35 26 33 35
21 40 34
45 26
Estimate the number of orchards in the district.