SOLUTION: Question 16
1. An airline knows from experience that the distribution of the number of suitcases that get lost each week on a certain route is approximately normal with μ = 1
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Question 930305: Question 16
1. An airline knows from experience that the distribution of the number of suitcases that get lost each week on a certain route is approximately normal with μ = 15.5 and σ = 3.6. What is the probability that during a given week the airline will lose less than 20 suitcases? Round the answer to the nearest ten-thousandth.
0.4040
0.3944
0.1056
0.8944
None of the above
Found 2 solutions by ewatrrr, stanbon:
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
μ = 15.5 and σ = 3.6,
.......
P( x < 20) = P( z < 4.5/3.6) = normalcdf(-100, 4.5/3.6) = .8944
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
An airline knows from experience that the distribution of the number of suitcases that get lost each week on a certain route is approximately normal with μ = 15.5 and σ = 3.6. What is the probability that during a given week the airline will lose less than 20 suitcases? Round the answer to the nearest ten-thousandth.
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z(20) = (20-15.5)/3.6 = 1.25
P(x < 20) = P(z < 1.25) = normalcdf(-100,1.25) = 0.8944
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Cheers,
Stan H.
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