Each student is provided with 15 number bers (corres watQQging to some selected ovalus 1, 3, ,4 12, 21, 33, 38, 43, 56, 67, 87, 98, 100, 110, 123 f ( $ ) = e 2 17 a) Plot the probabilites obtained from the table against f($) to form a normal probability paper plot. Plot a trendline to more clearly see the linearity. (Hint: You should be getting a nearly straight line that shows a normal distribution, b) From the normal probability paper plot you obtained, again find the mean and the standard deviation of the f($)data, c) Calculate the skewness coefficient of the f($)data