Packages of food with mean weight equal to 454 grams and with standard deviation of 20 grams are shipped in the boxes which contain 100 packages. a. Find probability that the average weight of a package in a box is less than 458 grams. b. Find probability that the total weight of 100 packages in a box is more than 45.2 kilograms (1 kg = 1000 grams) Keep four digits after decimal point in the answers a, and h

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