Question

ii) Classes are : 0-19, 20-39, 40-59, 60-79, 80-99.
Make them continuous by sharing steps.

I didn't get the question​

Answer 1

Answer:

add 0.5 to the higher class and subtract 0.5 from the lower class of the next class.

the first becomes 0-19.5 and the next becomes 19.5-39.5 and so on