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Mathematics, 13.11.2020 18:10 queentynaisa

The mean score on a calculus exam was 40 and the standard deviation was 5. The teacher decided to double everyone’s score, and then added 7 points. What are the values of the mean and standard deviation of the distribution of transformed exam scores?

mean = 80 and standard deviation = 5
mean = 80 and standard deviation = 10
mean = 87 and standard deviation = 5
mean = 87 and standard deviation = 10
mean = 87 and standard deviation = 17

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