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Scroll, draw, add text/images, select, move, resize, and delete annotations.
or drag & drop PDF here
Enter the lower limit, upper limit, and frequency for each class interval.
Class Interval | Lower Limit (L) | Upper Limit (U) | Frequency (f) |
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Sum of Frequencies (N = Σf):
Sum of fx (Σfx):
Mean (x̄):
Median Position (N/2):
Median Class:
Median (M):
Modal Class:
Mode (Mo):
x̄ = Σfx / Σf
M = L + [ ( (N/2) - cfb ) / fm ] * h
Mo = L + [ (fm - f1) / ( (fm - f1) + (fm - f2) ) ] * h