Question

2) write lower and upper limits of 5 - 10 in the classes 1-5,5-10,10-15,15-20.​

Answer 1

Answer:

Step-by-step explanation:

The cumulative frequency Table is:-

Class Frequency  Cumulative frequency  

0-5  10  10

5-10  15  25

10-15  12  37

15-20  20  57

20-25  9  66

Here,  

2

N

​  

=  

2

66

​  

=33

Thus 37 is just greater than 33,  

∴ The median class is "10−15."

The lower limit of the median class is 10.

Modal class = class with maximum frequency.

∴ Modal class is 15−20.

The lower limit of the modal class is 15.

Sum of lower limits of median class and modal class = 10+15=25