After every score in a sample is multiplied by 3, the mean is calculated and found to be M = 21. What was the mean for the original scores?
Question
Solution 1
To find the original mean before the scores were multiplied by 3, we can use the following steps:
- Let the original mean be denoted by ( \mu ).
- According to the problem, after every score in the sample is multiplied by 3, the new mean is calculated to be ( M = 21 ).
- When each score in a Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob
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Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
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