Question

Medals won by a school in Inter Sports Competition are as follows:
Year Number of Medals

2005	20
2011	23
2015	18
2017	7
2020	21

Identify the outlier corresponding to the number of medals won in different years.

• A. 7
• B. 23

Answer 1

The correct option is A 7

The given data regarding the number of medals won by the school in Inter Sports Competition in different years are as follows:
Year Number of Medals

2005	20
2011	23
2015	18
2017	7
2020	21

All the numbers of medals in the above table are between $18$ and $23$ except the number of medals won in the year $2017$.

In $2017$, the school won $7$ medals in the sports competition.

$\underset{–}{\text{Oulier:}}$ A value in a data set that is very different from all the other values of the data set.

As $7$ is very different from the remaining data points $\{20,23,18,21\}$, the outlier of the given data set is $7$.