Answer:
Mean is the sum of all the results included in the sample divided by the number of observations.
Explanation:
Suppose we have the score of 5 randomly selected students in a class.
The scores are:
[tex]45,48,52,65,78[/tex]
Now the mean of the 5 randomly selected students will be:
[tex]Mean = \frac{Sum-of-scores-of-five-students }{Number-of-students}[/tex]
[tex]=\frac{45+48+52+65+78}{5}[/tex]
[tex]=\frac{288}{5}[/tex]
[tex]=57.6[/tex]
Therefore, the mean is 57.6
