In which of these situations is a double bar graph useful? (i) Enrolment of students in class VII in 2009 and 2010. (ii) Marks obtained in Term I and Term II examinations. (iii) Marks obtained in all subjects of a term examination.

In which of these situations is a double bar graph useful? (i) Enrolme

1.	In which of these situations is a double bar graph useful? (i) Enrolment of students in class VII in 2009 and 2010. (ii) Marks obtained in Term I and Term II examinations. (iii) Marks obtained in all subjects of a term examination.
A.	(i) and (ii)
B.	(ii) and (iii)
C.	(iii) and (i)
D.	(i) only
Answer» B. (ii) and (iii)

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In which of these situations is a double bar graph useful? (i) Enrolment of students in class VII in 2009 and 2010. (ii) Marks obtained in Term I and Term II examinations. (iii) Marks obtained in all subjects of a term examination.

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