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Byju's Answer
Standard XII
Mathematics
Definition of Sets
Find the clas...
Question
Find the class mark of the class
11
−
19
A
15
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B
11
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C
19
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D
14.5
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Solution
The correct option is
A
15
Class interval :
11
−
19
Lower limit:
11
Upper limit:
19
Class Mark
=
Lower
+
Upper
2
Class Mark
=
11
+
19
2
Class Mark
=
15
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1
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Q.
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Q.
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students of a class test are
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