The table shows the marks scored out of 100 in three subjects by a student at the school.

The mean of the marks scored by the student is .

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Solution

The correct option is D 78
Mean is an average of the given numbers.
i.e, $Mean = \frac{Sum of all the observations}{Total number of observations}$

Sum of all observations = 85 + 73 + 76
= 234
Total number of observations = 3
$Mean = \frac{234}{3} = 78$

$∴$ The mean of the marks scored by the student is 78.

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The table shows the marks scored out of 100 in three subjects by a student at the school. The mean of the marks scored by the student is .

The correct option is D 78Mean is an average of the given numbers. i.e, Mean =Sum of all the observationsTotal number of observations Sum of all observations = 85 + 73 + 76 = 234 Total number of observations = 3 Mean =2343=78 ∴ The mean of the marks scored by the student is 78.

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The mean of the marks scored by the student is .