Question
A student needed to get a final grade of 90 to get a grade of A for the semester. He scored 83, 85, 92, 86, and 87. If the last two scores would be counted as one score. What is the least grade the student would need to get to get a final grade of A?
Is the answer 45?
Is the answer 45?
Answers
PsyDAG
Assume that 90 is the mean.
mean = ∑x/n = (83+85+92+86+87+x)/5 = ?
n = 5, because "the last two scores would be counted as one score."
Solve for x.
mean = ∑x/n = (83+85+92+86+87+x)/5 = ?
n = 5, because "the last two scores would be counted as one score."
Solve for x.
kareen
Thank you