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

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 the deviations of 20 observations measured from 30 is 2. What would be the mean of the observations?

If the algebric sum of the deviations of 20 observations measured from 30 is 2, then what would be the mean of these observations.

If the algebraic sum of deviations of 20 observation from 30 is 20, then the mean of observation is :

The algebraic sum of the deviations from the mean is