Mean Deviation

What will be the probable value of mean deviation when $Q_3=40$ and $Q_1=15$?

Sum of the squares of deviations is minimum when deviations are taken from

The mean deviation of the data $3, 10, 10, 4, 7, 10, 5$ is:

If the weekly wages of $5000$ workers in a factory follows normal distribution with mean and SD as $₹ 700$ and $₹ 50$ respectively, what is the expected number of workers with wages between $₹ 660$ and $₹ 720$?

The average weekly food expenditure of a group of families has a normal distribution with mean $₹ 1,800$ and standard deviation $₹ 300$. What is the probability that out of $5$ families belonging to this group, at least one family has weekly food expenditure in excess of $₹ 2,100 ?$ Given $\varphi \left(1\right)=0.84$.

"Mean has the least sampling variability" prove the mathematical property of mean

The correction factor is applied in

For the observations $6, 4, 1, 6, 5, 10, 4, 8$ Range is

Coefficient of variation $=($ Standard Deviation $\times 100)$ / Mean

For finding A.M in Step-deviation method, the class intervals should be of

Relative measures of dispersion make deviations in similar units comparable.

Coefficient of Mean Deviation is

Two coins are tossed simultaneously. What is the probability that the second coin would show a tail given that the first coin has shown a head?

For a moderately non-symmetrical distribution, Mean deviation $=\frac{4}{5}$ of standard deviation

$\left(Q_3-Q_1\right)/\left(Q_3+Q_1\right)$ is

When $1^{\mathrm{st} }$ quartile $=20,3^{\mathrm{rd} }$ quartile $=30$, the value of quartile deviation is

For purposes of comparison between two or more series with varying size or no. of items, varying central values or units of calculation, only ______ measures can be used.

Find the Mean Deviation for Discrete Frequency Distribution of the data shown in the below table:

Which one of the following statements is correct regarding the mean deviation for the ungrouped data given below?

$21, 23, 25, 28, 30, 32, 46, 38, 48, 46$

The below table obtained while calculating the value of the mean deviation:

Where, 

$\mu$, is mean of the ungrouped data

The required value of mean deviation is $2.57$.

The required value of the mean is $7$.

Which one of the following statements is correct regarding the mean deviation for the ungrouped data given below?

$5, 2, 7, 11, 3, 2$

The below table obtained while calculating the value of the mean deviation:

Where, 

$\mu$, is mean of the ungrouped data

The obtained value of mean deviation is $2.7$.

The obtained value of the mean is $5$.