The Following Table Displays the Marks Obtained by Three Students

question 60

Essay

The following table displays the marks obtained by three students on an economics test.

a)Calculate the mean marks obtained by the three students.
b)Suppose one of the scores was reported incorrectly.Charles scored 38 instead of 83.How will the mean change if the correction is incorporated?
c)How does the amount of data used affect the accuracy of a model?

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