Question

Write the Modal class

Class interval	10 – 15	15 – 20	20 – 25	25 – 30	30 – 35
Frequency	30	35	40	75	15

Answer 1

1. Analyze the given frequency table

To find the modal class, arrange the data into its corresponding pairs:

Class Interval	Frequency
10 – 15	30
15 – 20	35
20 – 25	40
25 – 30	75
30 – 35	15

 

2. Identify the highest frequency

Scan the frequency value (30, 35, 40, 75, 15) to find the maximum value:

Maximum Frequency = 75

3. Determine the corresponding class interval

The class interval that aligns with the maximum frequency of 75 is 25 – 30, In statistics, the group containing the highest occurrence rate is defined as the modal class.

The modal class for the given distribution is 25 – 30.