The median is the numeric value separating the upper half of a sample data set from the lower half. The median of a data set can be found by arranging all the values from lowest to highest value and picking the one in the middle. If there is an odd number of data values then the median will be the value in the middle. If there is an even number of data values the median is the mean of the two data values in the middle.
For the data set 14 14 15 17 21 21 22 23 first order the numbers from least to greatest.Since its already in order move on to the next step, find the number that is in the middle. The number should be between 17 and 21so we write the numbers between them.17 18 19 20 21and the middle number is 19 so that is the answer 19