Question

The weights (in kgs.) of 30 labourors working in a factory is as follows :

60, 65, 70, 65, 60, 70, 65, 70, 75, 80, 75, 60, 65, 70, 65, 65, 70, 65, 60, 70, 65, 75, 80, 75, 80, 65, 60, 65, 70, 80. Find the median and mode with the help of above data.

Answer 1

Arranging observation in ascending order

60, 60, 60, 60, 60, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 70, 70, 70, 70, 70, 70, 70, 75, 75, 75, 75, 80, 80, 80, 80

No. of observation (n) = 30 even

In the above observations 65 has repeated 10 times which is maximum so the Mode is 65.