diana Institute of TechnoX + id/modules/unproctoredTest. QuestionSheet Remaining Time: Unlimited Two thousand students took an exam. The scores on the exam have an approximate normal distribution with a mean u = 80 points and standard deviation o = 12 points. Round your answers to one decimal place. (a) Calculate the first- and third-quartile scores for this exam. Q1 Number points 3 = 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. Submit Assignment Quit & Save Back Question M O