Question 8 Not yet answered Points out of 1.00 P Flag question The scores on the final exam for Advanced Chemistry are normally distributed with a mean of 78 and a standard deviation of 10. The top 4% of the scores receive an "A+". What score do you need to get an "A"? Round off to the nearest integer. Select one: Oa. 90 Ob. 96 Oc. 99 Question 9 Not yet answered Points out of 1.00 P Flag question Which of the following describes the distinguishing properties of a normal distribution? Select one: Oa Its middle 50% is within 1.33 standard deviations of its mean b. Its measures of central tendency are all equal Oc. 99.7% of its values are contained within three standard deviations of its mean Od. All of the above Question 10 Not yet answered Points out of 1.00 P Flag question How can you use the normal probability plot to evaluate whether a set of data is normally distributed? Select one: Oa. If the distribution is normal, the plot of the Z values on the horizontal axis and the original values on the vertical axis will be a bell curve. Ob. If the distribution is normal, the plot of the Z values on the horizontal axis and the original values on the vertical axis will be a straight line. Oc. If the distribution is normal, the plot of the standard deviation on the horizontal axis and the original values on the vertical axis will be a straight line. Finish attempt .. MacBook Air