Question

Write a class interval whose class mark is 10.5 and class size is 7.​

Answer 1

Step-by-step explanation:

class mark-10.5

class size-7

then,

class interval=10.5+7/2

=17.5/2

=8.75

class interval is 8.75

Answer 2

Answer:

7 - 14

Step-by-step explanation:

Given : class mark is 10.5 and class size is 7.​

To Find : Write a class interval

Solution :

Class size = 7

Class mark i.e. mid point = 10.5

So, Mid point is $\frac{7}{2}=3.5$ away from the upper limit and lower limit .

Lower limit of class = 10.5-3.5 = 7

Upper limit = 10.5+3.5=14

Hence a class interval whose class mark is 10.5 and class size is 7 is 7 - 14