Question

pat just finished a principles of economics course and is trying to calculate her final grade, which is the average of four exams taken over the course of the semester. use the information in the table to calculate pats final grade. test 1: 81%, test 2: 72%, test 3: 83%, test 4: 83%

Explanation:

Step1: Sum the four exam scores

To find the average, we first need the sum of the scores. The scores are 81, 72, 83, and 83. So we calculate \(81 + 72 + 83 + 83\).
\(81+72 = 153\), and \(83 + 83 = 166\). Then \(153+166 = 319\).

Step2: Calculate the average

The average is the sum divided by the number of exams (which is 4). So we do \(\frac{319}{4}\).
\(319\div4 = 79.75\).

Answer:

Pat's final grade is \(79.75\%\)