How to Calculate Mode for Grouped Data?

Identify the modal class, the class interval with the highest frequency

Use the formula: Mode = L + [(f1 – f0) / (2f1 – f0 – f2)] × h

Let L = lower boundary of the modal class

Let f1 = frequency of the modal class

Let f0 = frequency of the class before the modal class

Let f2 = frequency of the class after the modal class

Let h = class width

Substitute the values into the formula

Calculate the result to get the mode