91Ó°ÊÓ

The Mean of the data is calculated by adding all numbers in the data set and then dividing by the number of values in the set.

The Median is the mid value of a data set and it is calculated by arranging the data set in ascending order (i.e., least to greatest).

The Mode is the most frequent number occurring in the data set.

Mean:

As we given in Introduction part, mean is the average of given data set.

i.e.,

Mean =$\frac{Sumofthedata}{Numberofthedata}$

$$\begin{gathered} Mean=\frac{11+11+12+12+12+12+13+15+17+22+22+22}{12} \\ Mean=\frac{181}{12} \\ Mean=15.1 \end{gathered}$$

Median:

In the given data set, we have 12 numbers and that are sorted in ascending order (i.e., Least to greatest)

$11;11;12;12;12;12;13;15;17;22;22;22$

Here in this data set, 6th and 7th data are in the middle.

So, Median can be calculated in the following way:

Median =$\frac{12+13}{2}$

Medium =$12.5$

Mode:

As described in Introduction part, the most frequent data in the given data set is $12$.

Therefore, the mode of this set is 12.

The value of Mean is greatest when compared to Median and Mode of this particular data set.