Question

Find the mean, variation and standard deviation of the following disrtibution
Classes 1-10,10-20,20-30,30-40,40-50,50-60
frequency 11,29,18,4 5,3

Answer 1

Answer:

I don't want to

Step-by-step explanation:

Tell math to solve it's own problem

Answer 2

Answer:

refer your text book format and answer it