Question

Qs) Find the mean of the following distribution by Assumed Mean Method: Class Interval Frequency 10-20 5 20-30 7 30-40 12 40-50 23 50 - 60 11 60 - 70 13 70 - 80 8 80 - 90 6 90 - 100 12​

Answer 1

Answer:

mean : sum of all observation/ total no of observation