Application of Number

Level 2

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Scatter Graphs - Tutorial 2

Let us look at a scatter graph in more detail.

Look at the graph below. It shows the exam grade against time spent revising.

As you can see, the longer the students spent revising, the better they did in general.

One student gained a grade C by only revising for 2 hours, but that result does not fit the general pattern.

If we put on the line of best fit, what grade would the students be likely to get if they revised for 6 hours?

Click here for answer.

If they revised for 10 hours, what grade would they likely gain?

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Now try this assessment.

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