Note that 22 was not in the list of numbers. Calculate the mean median or mode of a data set. I Arrange the data in ascending or decending order of magnitude.
To find the median you must first arrange the observations in an ascending or descending order.
If there are an even number of values in the data set the median is the arithmetic mean of the two middle numbers. The mathematical word median has different meanings with different operations. When the number of observations is odd the median is the middle value. But that is OK because half the numbers in the list are less and half the numbers are greater.