# statistics

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From past experience, an airline has found the
luggage weight for individual air travelers on its trans-
Atlantic route to have a mean of 80 pounds and a
standard deviation of 20 pounds. The plane is
consistently fully booked and holds 100 passengers.
whenever the total luggage weight exceeds 8300 pounds.
On what percentage of the flights will she end up having

• statistics -

Z = (score-mean)/SD = (83-80)/20 = ?

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/percentage related to that Z score.

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