Question: Nine randomly selected customers at a local fast-food restaurant ordered meals having the following calorie counts: 975, 520, 1560, 872, 1105, 437, 910, 785, and

Nine randomly selected customers at a local fast-food restaurant ordered meals having the following calorie counts: 975, 520, 1560, 872, 1105, 437, 910, 785, and 1335. Let y denote the calorie content of a meal ordered at this restaurant. Find:

a. ∑y

b. (∑y)²

c. ∑y²

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