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Determine the variance of the prob. Show solution each 1. Number of Errors in a Test X.(P(x) X P(x) 27 0.25 1.0 0.14 (a) 0.31

Determine the variance of the prob. Show solution each

1. Number of Errors in a Test X.(P(x) X P(x) 27 0.25 1.0 0.14 (a) 0.31 1.86 0.2 (b) 0.1 0.8 c. What is the mean of the distribution? 2. Number of Books Borrowed X. P(x) X P(x) 1 2 3 4 5 E(X)= What is the mean of the distribution

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