The Algebric Sum of deviations from Mean is zero.

Prove that "The Algebraic Sum of deviations from Mean is zero".

The algebraic sum of the deviations from the mean is

Consider the following statements: 1. Sum of deviations from mean is always zero. 2. The sum of absolute deviations is minimum when taken around median. Which of the above statements is/are correct?

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 15 is 7 The mean is

Consider the following statements: 1. The algebraic sum of deviations of a set of values from their arithmetic mean is always zero. 2. Arithmetic mean gt Median gt Mode for a symmetric distribution. Which of the above statements is/are correct?