1. Suppose a population was normally distributed with a mean = 10 and a standard deviation = 2. Show all work (A) What proportion would be expected to score between 7.5 and 12.5? Proportion =1 . Suppose a population was normally distributed with a mean = 10 and a standard deviation = 2. Show all work (B) What proportion would lie between 7.5 and 10.5?1. Suppose a population was normally distributed with a mean = 10 and a standard deviation = 2. Show all work (C) What proportion would lie between 10.5 and 12.5? Proportion =1. Suppose a population was normally distributed with a mean = 10 and a standard deviation = 2. Show all work (D) What score would separate the lower 40% of the population from the upper 60? Score =1 . Suppose a population was normally distributed with a mean = 10 and a standard deviation = 2. Show all work (E) If there 250 members of the population, how many would be expected to score 11 or more? Number of people =Paragraph In Sensitivity Styles 1 . Suppose a population was normally distributed with a mean = 10 and a standard deviation = 2. Show all work (F) What proportion would be expected to score 9 or more? Proportion = In working these problems, we began with an assumption about the distributions of scores. What is that assumption