Question

Prepare a less than and more than and less than cumulative frequency distribution from the following data: Class-Interval 0-10 10-20 20-30 30-40 40-50 50-60
Frequency: 5 15 10 20 5 10​

Answer 1

Less than cumulative frequency distribution:

It is obtained by adding successively the frequencies of all the previous classes including the class against which it is written. The cumulate is started from the lowest to the highest size.