The class interval of the classes 0 – 7, 7 – 14,14 – 21 ………etc., is A) 0 B) 7 C) 9 D) 8
The class interval of the classes 0 – 7, 7 – 14,14 – 21 ………etc., is
A) 0
B) 7
C) 9
D) 8
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Correct option is: B) 7
Class intervals 0-7, 7-14,14-21,..... are in exclusive form
\(\therefore\) Class interval of the classes = Upper limit - Lower limit
= 7-0 or 14-7 or 21-14 or....
= 7
Hence, class interval of the classes 0.7, 7-14, 14-21,.....etc is 7.
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