| Which of the following expressions, correctly calculate variance of a sample, x, derived from a population?
Choose the correct option from below list
(1)np.var(x, ddf=1)
(2)np.var(x, df=1)
(3)np.var(x)
(4)np.var(x, ddof=1)
Answer:-(4)np.var(x, ddof=1) | | |