For each of the following sets of data, (1) calculate the mean of the scores (left(mathrm{X}^{-} ight),(2))

For each of the following sets of data, (1) calculate the mean of the scores \(\left(\mathrm{X}^{-}\right),(2)\) calculate the deviation of each score from the mean \(\mathrm{X}-\mathrm{X}^{-}\), and (3) check to see if the sum of the deviations equals zero \(\sum \mathrm{X}-\mathrm{X}^{-}=0\).

a. \(2,4,6\)

b. \(5,6,13\)

c. \(4,7,8,9\)

d. \(5,2,7,13,11\)

e. \(3,8,14,11,16,7,14,15,11\)