Question
Fri September 11, 2009 By: Kovid Chabra

class interval

Expert Reply
Fri September 11, 2009

(1) below 10,below 20,below 30,below 40 etc

Class intervals are 0-10, 10-20, 20-30, 30-40

(2) above 0,above 10,above 20,above 30,above 40

Class intervals are 1-11, 11-21, 21-31, 31 - 41 etc

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