Unformatted text preview: bution with mean
μ = 0.37 and standard
deviation σ = 0.04. a) What proportion of adhesions measured in use are
higher than 0.40? b) What proportion of adhesions are between 0.40 and
0.47? c) What adhesion would the locomotive have to obtain to
be in the 95th percentile? Calculator Steps for...
normalcdf:
*Use normalcdf when
finding the area under
a normal distribution. invNorm:
*Use invNorm when
finding an
observation based on
a given percentile. This is with
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(CtlgHelp) Using the Calculator:
Ex. The adhesion of one 4400horsepower diesel
locomotive model varies in actual use according to a
normal distribution with mean
μ = 0.37 and standard
deviation σ = 0.04. a) What proportion of adhesions measured in use are
higher than 0.40? b) What proportion of adhesions are between 0.40 and
0.47?
c) What adhesion would the locomotive have to obtain to
be in the 95th percentile?...
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This note was uploaded on 08/21/2013 for the course MATH AP Statist taught by Professor Meghannwitchger during the Fall '13 term at Champlin Park High School.
 Fall '13
 MeghannWitchger
 Empirical Rule, Standard Deviation, ZScores, AP Statistics

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