Cross out values until you find the two centermost points and then calculate the average the two values.įind the average of the two centermost values. Now, let's find the mean of the data set with an even number of values. The median of the odd valued data set is four. Cross out values until you find the centermost point We will calculate this average by adding the two numbers together and then dividing that number by two.įirst, we will find the median of a set with an odd number of values. On the other hand, if the data set has an even number of values, then we will need to take the arithmetic average of the two centermost values. ![]() If the data set has an odd number of data points, then the mean is the centermost number. Now, let's perform this task with another example data set that is comprised of an even number of values. Let's sort an example data set with an odd number of values into ascending order. Likewise, in order to calculate the median, we need to arrange the numbers in ascending order (i.e. In order to calculate the IQR, we need to begin by ordering the values of the data set from the least to the greatest.
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