Statistics Test...

The absolute mean deviation about mean is:

Given Data set is \(1, 0, 2, 3, 1, 1, 15, 1, 3\).

Find the value of Variance and Standard mean deviation for the given data set?

If the mode of the scores 10, 12, 13, 15, 15, 13, 12, 10, x is 15, then what is the value of x?

The mean of 8 observations is 25. The 7 observations are 30, 24, 27, 22, 18, 26, 32. What is the 8th observation?

The mean deviation from the median is:

Find the mode of the following data.

If five friends received their pocket money as 170, 430, 300, 600 and 470 respectively. Find the mean and mean deviation of the received pocket money.

Find the mean deviation for the given data is p, 6, 6, 7, 8, 11, 15, 16, if value of mean of the data is 3 times of the ‘p’.

If the total number of observations is \(20, \sum x_{i}=1000\) and \(\sum x _{ i }^{2}=84000\), then what is the variance of the distribution?