Q46 of 116 Page 42

In question, fill in the blanks to make the statements true.

The sixth class interval for a grouped data whose first two class intervals are 10 – 15 and 15 – 20 is __________.

35 – 40

First interval = 10 – 15


Second interval = 15 – 20


Clearly,


Size of class interval = 5


Therefore,


Third interval = 20 – 25


Fourth interval = 25 – 30


Fifth interval = 30 – 35


Sixth interval = 35 – 40


Hence, the sixth-class interval for a grouped data whose first two class intervals are 10 – 15 and 15 – 20 is 35 – 40.


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