Match the terms to their definition. 1. combination the average of a set of data; the sum of the elements divided by the number of elements 2. complement if a is an event occurring, then a not occurring is the complement 3. correlation a statistical measure to describe how two random variables are related 4. dependent events the median of the upper half of the data set; a value which 75% of the data set falls below 5. dispersion the difference between the largest and smallest of the numbers in a set 6. independent events the difference between the largest and smallest of the middle 50% of the data set 7. inter-quartile range the middle item in a set of ordered data 8. lower quartile a subset of a given set of elements 9. mean a value below which a certain percentage of the data set falls; the median is the 50th percentile 10. median the outcome of one event does not impact the probability of the other 11. mode a data value that is far from the others 12. outlier a specific ordering or arrangement of elements 13. percentile events in which the outcome of one event impacts the probability of the other 14. permutation the item that appears most often in a set of data 15. range how data is distributed 16. upper quartile the median of the lower half of the data set; a value which 25% of the data set falls below