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# The probability distribution of a random variable X is given by

 X=x 0 1 2 3 4 P(X=x) 0.4 0.3 0.1 0.1 0.1

The variance of X is

$(a)\;1.76 \\(b)\;2.45 \\(c)\;3.2 \\(d)\;4.8$

(a) 1.76