How do you solve for median, mode, and 3rd quartile given a group data?
Median = L + w * (n/2 – F) / f, where: L = lower limit of the interval containing the median w = width of the interval containing the median n = total frequency F = cumulative frequency corresponding to the lower limit f =number of cases in the interval containing the median Lower limit of median class 96.5 width of median class 6 Cumulative frequency in the median class 18 Frequency in the median class 3 Median = 96.5 ————————————–… Mode is the class interval with maximum frequency = 84.5-90.5 The midpoint is 87.5 — the mode ————————————–… 3rd quartile: Q3 = L + w * (3n/4 – F) / f, where: 3rd Quartile: L = lower limit of the interval containing the Q3 w = width of the interval containing the Q3 n = total frequency F = cumulative frequency corresponding to the lower limit f =number of cases in the interval containing the Q3 Lower limit of Q3 class 102.5 width of Q3 class 6 Cumulative frequency in the Q3 class 21 Frequency in the Q3 cla
