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(7.1) Scatter Diagrams

To conduct a study on the relationship between time spent studying and grades, 20 students in a class were surveyed.

Scroll through the survey responses and add the data to the table to create a scatter diagram.


Look at your scatter diagram and answer the following:

The modal number of hours of study per week is

The mean average test score for the 20 students is

The median average test score for the 20 students is

hours

%

%

There is evidence from the scatter diagram that as the hours of study per week increases, the average test score tends to