The mean deviation about the median of the numbers 2, 3, 5, 20, 17, 15, 11, 9, 7 is

If the mean deviation about the median of the numbers a, 2a, ....., 50a is 50, then |a| equals : (1) 2 (2) 3 (3) 4 (4) 5

Find the mean deviation about the median for the data given below : 11, 3, 8, 7, 5, 14, 10, 2, 9

Let the median and the mean deviation about the median of 7 observation 170, 125, 230, 190, 210, a, b be 170 and frac{205}{7} respectively. Then the mean deviation about the mean of these 7 observations is :

What is the median of the values 11, 7, 6, 9, 12, 15, 19 ?

What is the mean deviation about the mean for the data 4, 7, 8, 9, 10, 12, 13, 17?

c. The mean deviation about Median for 1, 3, 5, 7, 9 is 5.