Question

If the class mark of a particular class is 10.5 and class size is 5 then find the

class interval.​

Answer 1

Answer:

Class mark is the mid point of the class interval.

Class size is the upper limit minus lower limit.

Given that class mark of a class is 10.5 and

class size is 5

By option verification,

Opition A class mark is

2

10.5+17.5

=

2

28

=14 False

Option B class mark is

2

10.5+3.5

=

2

14

=7 False

Option C class mark is

2

17.5+7

=

2

24.5

=12.25 False

Option D class size is 14−7=7 and

Class mark is

2

14+7

=

2

21

=10.5 True

Therefore the class interval is 7−14

Step-by-step explanation:

plzz see to it and give thank to my answers and mark me as a brainilist