Question

Class- magnitude in the series-10-20, 20-30, 30-40, 40-50 is-
(a) 10
(b) 5
(c) 15
(d) None of these

Answer 1

Explanation:

Class- magnitude in the series-10-20, 20-30, 30-40, 40-50 is-

(a) 10

(b) 5

(c) 15✔✔

(d) None of these

Answer 2

The class magnitude of these class intervals is 10 in each case.

Explanation:

Now I have to correct my friend here…

The magnitude of any class interval is actually considered as the difference that is between the upper class interval and lower class interval.

Now here when we look at the class intervals, we have,

10 – 20 ; The Difference is 20 – 10 = 10.

20-30  ; The difference is 30 – 20 = 10.

30-40 ; the difference is 40 – 30 = 10. And so on.

So the class magnitude of these class intervals is 10 in each case. So the correct answer is a). 10.