Question

?
(Ans. Arithmetic Mean = 35.5)
10. Find out arithmetic mean from the following distribution by Short-cut Method:
ang
Items
10-8
86
42
2-0
Frequency
10
8
6
4
2
(Ans. Arithmetic Mean = 6.33)​

Answer 1

first we draw a table calculate in proper manner.

And explain that the need in the graph it depends on questions that we need. so proper manner and measurement should be correct and use scale.