C. The distribution is the standard normal distribution. The find the boundaries if the total area is 30%. 0,4 0,3 0,2 20 0,1 1 X 6. The SAT has a mean score of 1498 and a standard deviation of 199. (5 points each) What is the z-score of 1720? b. What score represents the 95th percentile of the distribution? Round your answer to the nearest 10 points. C. If a school wants to admit only students with the top 1% of SAT scorers, what cut-off score is needed? Round your answer to the nearest 10 points.