Eight randomly selected customers at a local grocery store spent the following amounts on groceries in a single visit: $214, $184, $31, $92, $148, $175, $7, and $57. Let y denote the amount spent on groceries by a single customer in a single visit. Find the following:

a. ∑y
b. (∑y)^2
c. ∑y^2

The correct answer is a. 908; b. 824464; c. 144904.

Step-by-step explanation:

Eight randomly selected customers at a local grocery store spent the following amounts on groceries in a single visit: $214, $184, $31, $92, $148, $175, $7, and $57.

Let y denote the amount spent on groceries by a single customer in a single visit.

a. ∑y  = 214 + 184 + 31 + 92 + 148 + 175 + 7 + 57 = 908

b. (∑y = = 824464

c. ∑ = = 144904

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step-by-step explanation: