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The Cambridge Power and Light Company selected 20 residential customers at random. Following are the amounts, to the nearest dollar, the customers were charged for

The Cambridge Power and Light Company selected 20 residential customers at random. Following are the amounts, to the nearest dollar, the customers were charged for electrical service last month:

$7190815614469671711335710816965711721541757713141

a.Compute the arithmetic mean?(Round the final answer to 2 decimal places.)

b.Indicate whether it is a Statistic or a Parameter.

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