The three true statements about the median are:
- The median is the number in the middle of an ordered set of values.
- The median must be calculated by finding the mean of the two middle points when there is an even number of data points.
- Put the values in numerical order before trying to find the median.
The statement "The median is always greatly impacted by outliers" is false, as the median is less affected by outliers compared to the mean. The statement "Median is a number that is much lower or much higher than the rest of the numbers" is also false, as that describes an outlier rather than the median.