For a moderately skewed distribution, which of the following

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2 + 1 =
Solve this simple math problem and enter the result. E.g. for 1+3, enter 4.

For a moderately skewed distribution, which of the following empirical formula holds.

All of these

M.D.=45(S.D)

Q.D.=56(S.D)

Q.D.=23(S.D)