Question 924481
the professor grades on a curve and gives A’s to the top 10% of the class regardless of the score
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1st scenario: mean = 73, sd = 8
score 81
z = invNorm(.90) = 1.282
1.282*8 + 73 = 85 (least score to receive an A)
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2nd scenario: mean = 66, sd = 3
score 68
1.282*3 + 62 = 66 (least score to receive an A) **** better off