Mathematics, 23.03.2020 18:00 bando187
An airline company models the weight of each passengers luggage, Xi, as independent and identical random variables according to a normal distribution with mean/expectation μ = 35 pounds and standard deviation of σ = 5 pounds.
a. What is the probability a random passenger’s luggage is equal to 35 pounds? What about being between 30 and 40 pounds? Write out the integral form.
Now say the airline relaxes the normal distribution specification. Thus each luggage weights Xi are independent and identically distributed from some unknown distribution with mean 35 pounds and standard deviation of 5 pounds.
b. Say a sample of size n (where n is large) is taken from this distribution. What approximate n distribution does the sample mean, , X = ΑΣΧ, follow? State the type, expectation, and variance. What theorem are you using?
c. The airline is more interested in the total weight of all the luggages, rather than the mean/average n of them. What approximate distribution does follow? State the type, expectation, and variance.
Answers: 1
Mathematics, 21.06.2019 18:00, kush3489t
Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?
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Mathematics, 21.06.2019 22:30, fluffpupkiki
5. (04.07)which of the following exponential functions goes through the points (1, 12) and (2, 36)? (2 points)f(x) = 3(4)^xf(x) = 4(3)^-xf(x) = 3(4)^-xf(x) = 4(3)^x
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