Quartiles
Q1, Q2 and Q3 · Individual, discrete, continuous
Say what Q1, Q2 and Q3 mean
Find quartiles of individual and discrete series
Use the formula for a continuous series
Find a missing frequency from a quartile
A 64 cm stick, cut into quarters
Cut at 16 cm: first quartile Q1
Cut at 32 cm: second quartile Q2, the median
Cut at 48 cm: third quartile Q3
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