Question

the weight of 50 people are: 72 kg 48 kg 51 kg 69 kg 67 kg find the mean of their weights

Answer 1

given,
observations = 72,48,51,69,67
no of observations = 5
mean = sum of observations/ no of observation
=> 72+69+67+48+51/5
307/5
mean = 61.4

Answer 2

$\frac{72 + 48 + 51 + 69 + 67}{5} = \frac{307}{5} = 61.4$