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Smartphones: A poll agency reports that 37 % of teenagers aged 12 17 own smartphones. A random sample of101 teenagers is drawn. Round your answers

Smartphones:A poll agency reports that

of teenagers aged

own smartphones. A random sample of101

teenagers is drawn. Round your answers to at least four decimal places as needed.

Part 1 of 6

(a) Find the mean

.The mean

is37.37

Part:1 / 6

1 of 6 Parts Complete

Part 2 of 6

(b) Find the standard deviation

.The standard deviation

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