On a scale of 0 to 10, a college student rated her enjoyment of statistics as a 7. The average rating among college students is 5 and the average spread around that mean is 1.5. What is the z-score for this student’s raw score of 7?

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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  1. On a scale of 0 to 10, a college student rated her enjoyment of statistics as a 7. The average rating among college students is 5 and the average spread around that mean is 1.5. What is the z-score for this student’s raw score of 7?
    Please include the formula and calculations in your answer to this question.
  2. What percent of college students enjoy statistics more?

    What percent of college students enjoy statistics less?

    Explain how you solved these.

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“Since you have asked multiple questions, we will solve the first question for you. If you want any specific question to be solved, then please specify the question number or post only that question.”

Let X be a random variable which follows normal distribution with parameters μ,σ  then the standard normal variable is defined as

Z=X-μσ

The value is called z-score.

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