91Ó°ÊÓ

The mean of a set of data is the quotient of the sum of observations and the number of observations.

The median is the middle number in a sorted, ascending, or descending, set of numbers.

The mode of the set of data is the observation that occurs highest times.

The sum of observation for the given set of data is:

$7+6+5+7+4+8+2+2+7+8=56$

And, the total number of observations is 10.

So, the mean of the given set of data is $\frac{56}{10}=5.6$.

The given set of data in ascending order is $\left\{2,2,4,5,6,7,7,7,8,8\right\}$. The total number of observations is 10, i.e., even.

The median of the set of data is the mean of the fifth and sixth observations.

role="math" localid="1643275752549" $\begin{array}{c}\frac{5+6}{2}=\frac{13}{2}\\ =6.5\end{array}$

So, the median of the given set of data is 6.5.

In the given data set, observation 7 in the set occurs most of the time. So, the mode of the given set of data is 7.

Therefore, the mean, median, and mode of the set of data $\{7,6,5,7,4,8,2,2,7,8\}$are 5.6, 6.5, and 7 respectively.