HELP ASAP FOR BRAINLIEST: The time required to finish a test is normally distributed with a mean of 60 minutes and a standard deviation of 1

Question

HELP ASAP FOR BRAINLIEST: The time required to finish a test is normally distributed with a mean of 60 minutes and a standard deviation of 10 minutes. What is the z-score for a student who finishes the test in 45 minutes? Show work!

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Harper 3 months 2022-02-15T14:05:24+00:00 1 Answer 0 views 0

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    2022-02-15T14:06:30+00:00

    Answer: the z score is – 1.5

    Step-by-step explanation:

    Since the time required to finish a test is normally distributed, we would apply the formula for normal distribution which is expressed as

    z = (x – µ)/σ

    Where

    x = time required to finish the test

    µ = mean time

    σ = standard deviation

    From the information given,

    µ = 60 minutes

    σ = 10 minutes

    We want to find the z-score for a student who finishes the test in 45 minutes

    For x = 45,

    z = (45 – 60)/10 = – 15/10 = – 1.5

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45:7+7-4:2-5:5*4+35:2 =? ( )