Question

Rekha obtained the following scores (out of 100) on a set of Maths tests.
88,92,95,80,55,100. What is her mean score?

Answer 1

it will be the right answer , if MEAN mean AVERAGE

Answer 2

Mean score of Rekha is 85

Solution:

The mean is given as:

$Mean = \frac{ \text{ sum of all observations }}{ \text{ total number of observations }}$

Given that,

Rekha obtained the following scores (out of 100) on a set of Maths tests.

88, 92, 95, 80, 55, 100

Total number of observations = 6

Sum of observations = 88 + 92 + 95 + 80 + 55 + 100 = 510

Thus mean is given as:

$Mean = \frac{510}{6}\\\\Mean = 85$

Thus her mean score is 85

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