CTET Class I to V 2015 Feb Paper

Question : 49 of 150

Marks: +1, -0

13 students of class V A and 15 of class V B participated in a writing competition. They scored marks as follows:

Class V A 14, 6, 15, 12, 11, 11, 7, 9, 17, 13, 3, 10, 18
Class V B 13, 9, 0, 7, 14, 6, 0, 9, 16, 9, 13, 16, 5, 18, 11

What inference can you draw from the given data?

Both the sections performed equally well because the highest score of both the sections is 18.
Class V A performed better because the average score of VA is more.
Both the sections performed equally well because the total marks scored by both the sections are the same.
Both the sections performed equally well because the average marks of both the sections are the same.

Validate

Solution:

Average score of class V A

=\;{14+6+15+12+11+11+7+9+17+13+3+10+18}/{15}

=\;{146}/{13}=11.23

Average score of class V B

=\;{13+9+0+7+14+6+0+9+16+9+13+16+5+18+11}/{15}

=\;{146}/{15}=9.73

Class V A performed better because the Average Score of V A is more.

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