The mean of the first three terms is $14$ and the mean of the next two terms is $18$. What is the mean of all five terms?

In a data,if the number $i$ is repeated $i$ times for $i=1, 2, \ldots, n$,then the mean of the data is

Find the weighted mean of the first $n$ natural numbers,where the weights are equal to their squares.

If ${d_i}$ is the deviation of a class mark ${y_i}$ from $a$,the assumed mean,and ${f_i}$ is the frequency,if ${M_g} = x + \frac{1}{{\sum {f_i}}}(\sum {f_i}{d_i})$,then $x$ is:

For a distribution $x_1, x_2, \dots, x_{101}$ such that $x_1 < x_2 < x_3 < \dots < x_{100} < x_{101}$,the mean deviation of this distribution about a number $k$ is minimum. Then $k$ is equal to which of the following?

The arithmetic mean of the following discrete data $12, 14, 20, 23, 25, 32$ is given by