Lower Quartile Formula In Statistics. The lowest 25 of the data being found below the first quartile value. 25 27 2 26 upper quartile.
40 45 50 55 56 69 75 77 88 90. So lower quartile q1 9. Second quartile q 2 n 1 2 t h t e r m.
It is the same as p25.
N is the number of the observations. Average of 2nd and 3rd terms. Q 2 n 1 2 th item. It will put the complete list of numbers in an order.
