Original scores :
45,65,70,80,85,100
IQR = 85 - 65 = 20
new scores :
65,70,80,85
IQR = (80 + 85)/2 - (65 + 70)/2 = 82.5 - 67.5 = 15
Here u go: D. integer, B.Rational and C. real
Answer:
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