Embibe Experts Solutions for Exercise 1: West Bengal Board-2018

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 $10$

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:

Find the median of the numbers $1, 2, 3, 5, 8, 6, 9,11 \mathrm{and} 4$.

The mode of $1, 3, 2, 8, 10, 8, 3, 2, 8, 8$ is

Ages of some students are (in years) $10, 11, 9, 7, 13, 8, 14$, the median of the ages of those students is _____.

If $n$ is an even number, then median is the mean of ${\left(\frac{n}{2}\right)}^{th}$ and ${\left[\left(\frac{n}{2}\right)-1\right]}^{th}$ observation.