Find the median of the given data:

Class Interval	$1-5$	$6-10$	$11-15$	$16-20$	$21-25$	$26-30$	$31-35$
Frequency	$2$	$3$	$6$	$7$	$5$	$4$	$3$

 

The mean of the data $x_1, x_2, x_3 \dots \dots x_{10}$ is $20$ then the mean of $x_1+ 4, x_2+ 4, x_3+ 4, \dots \dots \dots . x_{10}+ 4$ will be 

The variables $x_1, x_2, \dots .. x_{100}$ are in ascending order of their magnitude, then the median of the variables is then the median of the variables is $\frac{(x_k+x_{51}+1)}{2}$. then the value of$k$ is _____.

Value of the median of data $2, 3, 9, 10, 9, 3, 9$ is $10$

If the arithmetic mean of the following frequency distribution is $54$, then find the value of $k$.

Making frequency distribution table from the given cumulative frequency distribution table, find the mode of the data.

Find the mean of $52$ students of class $\mathrm{X}$ in a school by using the direct method and assumed mean method from the table given below: