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erma4kov [3.2K]

3 years ago

5

An airlines records show that its flights between two cities arrive on the average 5.4 minutes late with a standard deviation of

1.4 minutes. at least what percentage of its flights between the two cities arrive anywhere between

1 answer:

Scorpion4ik [409]3 years ago

5 0

<span>Interval between 2.6 minutes late and 8.2 minutes late is within 2 standard deviations of the mean (k =8.2â’5.4/1.4 =5.4â’2.6/1.4 = 2). By Chebyshevâ€™s Theorem, at least 1 â’1/2^2 =3/4 of all flights, i.e. at least 75% of all flights arrive anywhere between 2.6 minutes late and 8.2 minutes late.</span>

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