Consider this 5 number summary for a 22point quiz given to a class. 5, 12, 14, 17, 21 What percentage of students earned 17points or more on the quiz? Answer: Pregnancies from contraception to birth varies according to an approximately normal distribution with u=266 days and o-16 days. The lengths of the middle 95% of all pregnancies fall between two values. Find these values and state the upper value. Answer: