If you can answer both , I'd highly appreciate that but if not one is perfectly fine ?? thank you .

Window Help t 2.7 part II -Fai|21.pdf Assignment 2.7 Part II I. Find mean, variance, and sample standard deviation for the following (grouped) equency distribution. (Note: xm is the midpoint of each class). 2. A student of the author earned grades of A, C, B, A, and D. ThOSe courses had these corresponding numbers of credit hours: 3, 3, 3, 4, and 1. The grading system assigns quality points to letter grades as follows: A=4; B=3, C=2; D=1;F=0. Compute the grade-point average (GPA) and round the result with two decimal places. If the dean's list requires a GPA of 3.00 or greater, did this student make the dean's list