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Remaining Time: 01:32:46 Two thousand students took an exam. The scores on the exam, have an approximate normal distribution with a mean / = 80

Remaining Time: 01:32:46 Two thousand students took an exam. The scores on the exam, have an approximate normal distribution with a mean / = 80 points and standard deviation o = 13 points. Round your answers to one decimal place. (a) Calculate the first- and third-quartile scores for this exam. Q1= Number points Number points (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 Number points and Number points

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