Math, asked by sininavin, 5 months ago

the class size of a class interval 20-30 is

Answers

Answered by Anonymous

1

Answer:

unable to understand the question

Answered by Anonymous

7

Step-by-step explanation:

Class mark is the average of upper limit and lower limit of the given class interval.

Therefore, class mark of 20−30 interval is

2

20+30

=

2

50

=25

Class mark of 10−20 interval is

2

10+20

=

2

30

=15

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