Question

7) The scores on the final exam of 5 students from a class of 25 are 83, 90, 75, 100, 85. Find the point estimate ofthe mean for the students' scores.

Answer 1

The point estimate of the mean of the student's score, will be the mean of the scores from the sample.

To find the mean of the scores, add all the scores and divide the sum by the number of scores. Since there are 5 scores in this sample, then the point estimate of the mean will be:

`\begin{gathered} (83+90+75+100+85)/(5) \\ =(433)/(5) \\ =86.6 \end{gathered}`

Therefore, the point estimate of the mean for the student's scores is 86.6