Quartile Deviation of Continuous Series
Continuous series · Quartiles · Q.D. and its coefficient
Group raw data into a continuous series
Explain what Q1, Q2 and Q3 are
Find Q1 and Q3 from a grouped table
Calculate Q.D. and its coefficient
Values can be decimals: 56.4 kg, 59.5 kg
Classes join with no gaps: 50 - 55, 55 - 60
55 - 60 means 55 or more, but less than 60
Exactly 60 goes to the next class
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