Arrange the data values in order from the lowest value to the highest value:
384 | 391 | 407 | 522 | 591 | 672 | 733 | 777 | 1490 | 2488 |
Median :
The number of values in the data set is 10, which is even. So, the median is the average of the two middle values.
Median=(591+672)/2=631.5