List of top Mathematics Questions on Mean Deviation asked in BITSAT

Find the mean deviation about the mean for the data set: 1, 3, 5, 7, \dots, 101

If the variance of the data \( 2,3,5,8,12 \) is \( \sigma^2 \) and the mean deviation from the median for this data is \( M \), then \( \sigma^2 - M \) is:

The variance of 20 observations is 5. If each observation is multiplied by 2, then the new variance of the resulting observation is:

The mean of \( n \) items is \( X \). If the first item is increased by 1, second by 2, and so on, the new mean is: