A high school is evaluating candidates for their Student of the Month Award. They plan to use student performance in academic courses to determine who is most deserving. There are three male candidates. Ricky scored a 97% in his Calculus class where the average score was 81% with a standard deviation of 8%.

Ernesto a 91% in his Statistics class where the average score was 80% with a standard deviation of 5%.

Chuck scored a 95% in his Differential Equations class where the average score was 82% with a standard deviation of 8%.

Who deserves to win the award?

PLS Help

Ricky

Step-by-step explanation:

This is because if you calculate the z score of it it will shows

Part A: Yes, the first data represents a function. By the book definition, a function is a relation in which no value of x will have two different values of y. This means that we can have two similar values of y with two different values of x but not the other way around.
None of the numbers for the table of x repeat, therefore we can safely say that the relation is a function.

Part B: For this part, all we have to do is to plug in x = 4 in the 2nd relation,

f(x) = 2(4) – 8 = 0

In the table, when x = 4, y = 9. Therefore the function described in the table has greater value.

Part C: Again all we have to do is to plug in x = 34 in the 2nd relation,
f(x) = 2(34) – 8

f(x) = 60