Question

Sam’s grades on eleven chemistry tests were 90, 85, 76, 63, 94, 89, 81, 76, 78, 69. What statement is true about the measures of central tendency? a. The mean is the best measure of central tendency for these grades.

b. The median is 78.
c. The mode is not applicable in this case.
d. The range is a reliable measure of central tendency in this context.

Answer 1

The mean is 7.7, the median is 7.5, and the mode is seven.

Step-by-step explanation:

The mean is 7.7, the median is 7.5, and the mode is seven.

Of the three statistics, the mean is the largest, while the mode is the smallest. Again, the mean reflects the skewing the most.