The marks of 5 students in a unit test are given below:-

$x – 1, 2x +1, 2x – 2, x – 1, 2x + 3$ where $x = 5$.

On the basis of above information answer the questions.

The mode of data in numerals is

4

A mode is defined as the value that has a higher frequency in a given set of values. It is the value that appears the most number of times.

ATQ,

x – 1, 2x +1, 2x – 2, x – 1, 2x + 3

Marks of 5 students is, where x = 5:

(5 - 1), (10 + 1), (10 - 2), (5 - 1), (10 + 3)

⇒ 4, 11, 8, 4, 13

Arrange the data in ascending order: 4, 4, 8, 11, 13

Now, we can see the number 4 is two times (most number of times) appears in the series.

Hence,

Mode = 4