Embibe Experts Solutions for Chapter: Measures of Dispersion, Exercise 1: TS EAMCET - 5 August 2021 Shift 1

The approximate value of the mean deviation about the mean for the following data is

If $10$ is the mean of the data $2, 3, 5, 18, 17, 15, 13, x, 9$ and $7,$ then the mean deviation of this data about its mean is

Let $O$ be the mean deviation of the first five odd natural numbers about their mean and $P$ be the mean deviation of the first five prime numbers about their mean. Then $P-O=$

If $M_1$ and $M_2$ are the mean deviations from mean and median of the first $15$ even integers then $M_1+M_2=$

$x_1, x_2,\dots , x_n$ are $n$ observations with mean $\overline{x}$ and standard deviation $\sigma$. Match the items of List-I with those of List-II

The variance of $50$ observations is $7$. If each observation is multiplied by $6$ and then $5$ is subtracted from it, then the variance of the new data is

The variance of the data $2,3,5,11,13,17,19$ is nearly

If $65$ is the range of the ungrouped data $50, 70, 60, B, 20, 40$ then the absolute difference of the possible values of $B$ is