Question
to pass a course with an A grade, a student ,must have an average of 90 or higher. A students grades on three tests are 93,92 and 83. What is the score the student must get on the nest test to get an A average?
Answers
PsyDAG
mean = ∑x/n
90 = (92 + 92 + 83 + x)/4
Solve for x.
90 = (92 + 92 + 83 + x)/4
Solve for x.