Question

9 people take a test.their scores out of 100 are 56,79,77,48,90,68,79,92 and 71.find out the mean of their scores

Answer 1

Answer:

73.3333333

Step-by-step explanation:

=660/9

=73.33333

Answer 2

The mean score of the people's test scores is 73.33.

Given:

test scores of 9 people are: 56, 79, 77, 48, 90, 68, 79, 92, and 71

To Find:

we need to find the mean score of the 9 people

Solution:

the mean of a set of observations is given as-

mean = sum of observations/number of observations

the sum of all the test scores =  56 + 79 + 77 + 48 + 90 + 68 + 79 + 92 + 71

= 660

number of observations in this case = 9

thus, mean = 660/9

= 73.33

Thus, the mean score of the people's test scores is 73.33.

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