The following table gives production yield in kg. per hectare of wheat of 150 farms in a village. Calculate the mean, median and mode values.
Production yield (kg. per hectare)
50 – 53
53 – 56
56 – 59
59 – 62
62 – 65
65 – 68
68 – 71
71 – 74
74 – 77
Number of farms
3
8
14
30
36
28
16
10
5