Question: The random variable X, representing the number of errors per 100 lines of software code, has the following probability distribution: f(x) 0.01 2 3

The random variable X, representing the number of errors per 100 lines of software code, has the following probability distribution: f(x) 0.01 2 3 4 5 6 0.25 0.4 0.3 0.04 Find the variance of X.

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