Ofall the luggage handled by the airlines at JFK in the last 10years, 15% was lo

Q: Ofall the luggage handled by the airlines at JFK in the last 10years, 15% was lo

Since we are finding less than 140 and using the normal toapproximate the binomial, we need to use 139.5. If it was less than or equal to we would want to use 140.5. Therefore, the answer is c!

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Question

Ofall the luggage handled by the airlines at JFK in the last 10years, 15% was lost or stolen or damaged. For a randomlyselected sample of 1000 pieces of outgoing luggage at JFKInternational Airport, we shall use the Normal Approx to theBinomial to find the probability that less than 140 pieces ofluggage will be lost or stolen or damaged.

Acontinuity correction would be appropriate. Thus we would becomputing:

a)P(X < 140)

b)P(X < 140.5)

c)P(X < 139.5)

d)P(X < 141.5)

e)None of the above

Explanation / Answer

Since we are finding less than 140 and using the normal toapproximate the binomial, we need to use 139.5. If it was less than or equal to we would want to use 140.5. Therefore, the answer is c!

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Ofall the luggage handled by the airlines at JFK in the last 10years, 15% was lo

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Ofall the luggage handled by the airlines at JFK in the last 10years, 15% was lo

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