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Two thousand students took an exam. The scores on the exam have an approximate normal distribution with a mean =83 points and standard deviation =14
Two thousand students took an exam. The scores on the exam have an approximate normal distribution with a mean =83 points and standard deviation =14 points.
Round your answers to one decimal place.
(a) Calculate the first- and third-quartile scores for this exam.
Q1= _____ Q3= _______
(b) The middle 50% of the exam scores are between what two values? Enter your answers in increasing order. The middle 50% of the exam scores are between_____and_____
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