Question: 4.35 The random variable X, representing the number of errors per 100 lines of software code, has the following probability distribution: x 2 3 4

4.35 The random variable X, representing the number of errors per 100 lines of software code, has the following probability distribution:

x 2 3 4 5 6 f(x) 0.01 0.25 0.4 0.3 0.04 Using Theorem 4.2 on page 141, find the variance of X.

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