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Question

The graph below shows marks obtained by some students in two tests.

What is the average of the marks scored by Vinsta in two tests?

A
70
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B
130
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C
65
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D
60
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Solution

The correct option is C 65
From the given double bar graph, it can be noted that the marks obtained by Vinsta in the two tests are 60 and 70.
Average=Sum of all observationsTotal number of observations
Average of marks obtained=Sum of the marks obtained in two testsNumber of tests
= 60+702
= 1302
= 65
Therefore, average marks scored by Vinsta is 65.

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