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OpenStudy (anonymous):
Nicole missed the lesson on normal distribution and needs to do her homework. Explain to Nicole how to use the mean and standard deviation of a normal distribution to determine the top 5% of the population.
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OpenStudy (misssunshinexxoxo):
z = invNorm (.05) = 1.645. Then, 1.645 = x - u / a. solve for x.
OpenStudy (anonymous):
wait how do u get 1.645 tho
OpenStudy (misssunshinexxoxo):
Plug in 5%
OpenStudy (misssunshinexxoxo):
inverse
OpenStudy (anonymous):
ohh and can u explain the variables
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OpenStudy (misssunshinexxoxo):
substitute the mean (u) and standard deviation (a)
OpenStudy (anonymous):
ok thanks! luv u1<3
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