Consumer Reports rated alines and found that 72 of the flights involved in the study arrived...

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Consumer Reports rated alines and found that 72 of the flights involved in the study arrived on timele, within 15 minutes of

math Statistics-And-Probability

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Answer 1

Answer #1

X ~ Bin ( n , p)

Where n = 186 , p = 0.72

E(X) = n * p = 186 * 0.72 = 133.92

Standard deviation = sqrt ( n p ( 1 - p) )

= sqrt ( 186 * 0.72 ( 1 - 0.72) )

= 6.12

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Answer 2

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Consumer Reports rated airlines and found that 72% of the flights involved in the study arrived...

Consumer Reports rated airlines and found that 89% of the flights involved in the study arrived...

According to Harper's Index, 55% of all federal inmates are serving time for drug dealing

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Consumer Reports rated alines and found that 72 of the flights involved in the study arrived...

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