An instructor is preparing a report showing mid-semester grades and notes that the mean,median,and mode are all exactly 76.00.What can she conclude?
A)The distribution of grades is unskewed.
B)There is a negative skew in the distribution (a few students have very low grades).
C)There is a positive skew in the distribution (a few students have very high grades).
D)all of these

Question

Quizplus · Accepted Answer

If the mean, median and mode are all exactly the same, then it is an indication that the distribution is symmetric and unskewed. Therefore, option A is the correct choice. Option B and C cannot be correct because they both indicate a skew, which is not present in this scenario.

An Instructor Is Preparing a Report Showing Mid-Semester Grades and Notes