Answer the following questions:
a) In 2004, Statistics exam scores followed a normal distribution with a mean of 70 points and a standard deviation of 7. using the empirical Rule, an estimate for the proportion of values between 49 and 77 is?
b) For the exam with mean 70 and standard deviation 7, what score would a student have to get in order for 97.5% 0f the scores to be above that value?