Ch-14 Statistics , NCERT
Q ~ how is class size or class width obtained (h) in grouped data
(( 1 )) by subtracting lower limit from upper limit in a class interval
ex ;
class interval - frequency
5-10 - 3 ( 1st class interval )
10-15 - 7 ( 2nd class Interval )
In 1st class , L = 5 and U = 10
U - L = H
10 - 5 = 5
or
(( 2 )) by subtracting lower limit of preceding ( 1st ) class interval from lower limit of succeding ( 2nd ) class interval
ex ;
class interval - frequency
5-10 - 3 ( 1st class interval )
10-15 - 7 ( 2nd class Interval )
In 1st class , L = 5
In 2nd clas, L = 10
( L of 2nd class ) - ( L of 1st class ) = H
10 - 5 = 5
Which method is right (( 1 )) or (( 2 )) ?
PLEASE ANSWER ONLY IF YOU ARE SURE THAT YOU ARE CORRECT !!!
AND IF YOU DON'T UNDERSTAND THE QUESTION THEN IGNORE
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Answer:
Method 1st is correct....!!
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