# Numerical Measures of Central Tendency and Variability

## Measures of Central Tendency

### Answers

- 3

Because there are 5 numbers, the median is the middle number when they are ranked from lowest to highest. - What is the mode of -2, 4, 0, 3, 0, 2, 4, 4, and 8?
- Mean = 85, Median = 84, Mode = 75, so the mean of his scores is the highest.
- If the teacher is going to use the median as the final grade, she should only argue the middle score (87). Changing the other scores by 2 points would not affect the median.