Lower Quartile And Upper Quartile Formula. What it basically means is that in a data set with n data points. Completing the calculation 7 1 gives us 2.
Using the formula we would substitute 7 for n because we have 7 values in our data set. Lower quartile q 1 2 5 th term 11. Middle quartile q2 n 1 2 4.
Q3 is the upper quartile or 75.
Upper quartile middle value of the upper half 36. If there is an even number of data items then we need to get the average of the middle numbers. Upper quartile q3 n 1 3 4. Lower quartile q 1 2 5 th term 11.
