The geometric mean of the numbers $4, 5, 10, 20, 25$ is .........

The median of $10, 14, 11, 9, 8, 12, 6$ is

Which one of the following measures of central tendency is the most suitable for evaluating the intelligence of students based on their marks?

If the mean of five observations $x, x + 2, x + 4, x + 6$,and $x + 8$ is $11$,what is the mean of the last three observations?

If the mean of the set of numbers ${x_1}, {x_2}, {x_3}, ..., {x_n}$ is $\bar x$,then the mean of the numbers ${x_i} + 2i$,$1 \le i \le n$ is

The upper quartile for the following distribution is given by the size of:

Size of Item	$1$	$2$	$3$	$4$	$5$	$6$	$7$
Frequency	$2$	$4$	$5$	$8$	$7$	$3$	$2$