Roland received a score of 90 on a test for which the mean score…

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Question Answered step-by-step Roland received a score of 90 on a test for which the mean score… Roland received a score of 90 on a test for which the mean score was 83.2. Roland has learned that the z-score for his test is 0.8. What is the standard deviation for this set of test scores? Math Statistics and Probability MATH 1111 Share QuestionEmailCopy link Comments (0)

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thanks for your help