Scores on a certain aptitude test by nursing students are normally distributed with a mean of 500 and a variance of 10,000. a) What proportion of those taking the test score below 450? b) A person is about the take the test. What is the probability that they will make a score of 650 or more? c) What proportion of scores fall between 350 and 675?

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A: Given data, μ=100 σ=15 P(X<x)=2.5%=0.025

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A: GIVEN DATA  ss  = 80var(x) = 8N = ?

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A: L

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A: given data  W.H.O. minimum calories = 2600 μ = 2460σ = 500n = 49P(x¯ >2600) = ?

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A: From the Standard Normal Table, the value of z* for 95% level is 1.96.

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A: Given information:

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A:

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A: Given,sample size(n)=249sample proportion(p^)=0.34

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A: From the given question,

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A: We are given,μ = 196σ = 22n = 60

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A: In this case, we need to identify the correct option for the given question.

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A: Use ∑P(x) =1   to find the remaining probability

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A: Any descriptive value calculated from a population is calleda. statisticsb. parameterc. meand.…