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The mean score on a test that a teacher gave to a precalculus class was 76, and the standard deviation was 7. To be cons
Posted: Wed May 04, 2022 11:02 am
by answerhappygod
- The Mean Score On A Test That A Teacher Gave To A Precalculus Class Was 76 And The Standard Deviation Was 7 To Be Cons 1 (46.81 KiB) Viewed 33 times
The mean score on a test that a teacher gave to a precalculus class was 76, and the standard deviation was 7. To be consistent with previous tests, the teacher would like to adjust the scores so that the mean is 85, and the standard deviation is 3.5. Which of the following series of calculations should the teacher perform to accomplish this aim? Multiply each score by 0.5, and then add 47 to each result. Add 9 to each score, and then multiply each result by 0.5. Multiply each score by 0.5, and then add 9 to each result. Multiply each score by 1.5, and then subtract 29 from each result.