Ask Question
6 January, 08:55

On a standardized exam, the scores are normally distributed with a mean of 300 and a standard deviation of 20. Find the z-score of a person who scored 315 on the exam.

+1
Answers (1)
  1. 6 January, 09:04
    0
    Answer: 0.75

    Explanation:

    Mean (μ) = 300

    Standard deviation (σ) = 20

    Find the z-score of a person who scored 315 on the exam;

    Raw score (x) = 315

    Z = (raw score - mean) : standard deviation

    Z = (x - μ) : σ

    Z = (315 - 300) : 20

    Z = 15 : 20

    Z = 0.75
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “On a standardized exam, the scores are normally distributed with a mean of 300 and a standard deviation of 20. Find the z-score of a person ...” in 📗 Business if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers