The algebraic sum of deviations of 10 observations measured from 15 is 7 The mean is

The algebraic sum of deviations of 10 observations measured from 16 is 7. The mean is 105 (b) 70 (c) 15.7 (d) None of these

The algebraic sum of deviations of 10 observations measured from 16 is 7. The mean is (a) 105 (b) 70 (c) 15.7 (d) None of these

I. The geometric mean of 2,4,16 and 32 is a II. The strength of 7 colleges in a city are 385, 1748, 1343, 1935, 786, 2874 , 2108. Then the median strength is b. II. The algebric sum of the deviations of 20 observations measured from 30 is 2. The mean of these observations is c.

Sum of squares of deviation of 10 observations measured from 5 is 17 and sum of squares ofobservations is 170 then mean of observation is

The algebraic sum of the deviations of a set of n values from their mean is (a) 0 (b) n-1 (c) n (d) n+1

If the sum of the deviations of 50 observations from 30 is 50, then the mean of these observations is

If the sum of the squares of deviations for 10 observations taken from their means is 2.5, then write the value of standard deviation.

The sum of the squares of deviation of 10 observations from their mean 50 is 250,then coefficient of variation is

The sum of deviations of n observations about 25 is 25 and sum of deviations of the same n observations about 35 is -25 . The mean of observations is

Find the mean of the following data : 30,32,24,34, 26,28, 30, 35, 33, 25 Show that the sum of the deviations of all the given observations from the mean is zero.