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(5 points) Lisa took 4 courses last semester: History, Spanish, Calculus, and Physics. The means and standard deviations for

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Answer #1

Converting Lisa's scores into Z - scores, we get the following Table:

Subject Mean (mu) Standard Deviation (sigma) Lisa's score (X)

Lisa's Z -score

Z=rac{X-mu }{sigma }
History 53 16 65 65-53 16 0.75
Spanish 44 12 59 59-44 1.25 12
Calculus 70 12 91 91-70 12 1.75
Physics 60 14 49.5 9.5 60 14 ー-0.75

Answer:

Calculus

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