Mathematics 0580 · IGCSE · Scatter diagrams

Scatter diagrams — practice question

Fidel gives varying amounts of water to some plants. The scatter diagram displays the height (cm) and amount of water (ml) for each of 15 plants.
(a)[1]

Place these two results on the scatter diagram.

(b)[1]

What sort of correlation is displayed by the scatter diagram?

(c)[1]

On the scatter diagram, circle the point for this plant.

(d(i))[1]

Draw a line of best fit on the scatter diagram.

(d(ii))[1]

Use your line of best fit to estimate the height of that plant.

(e)[3]

Find the percentage of these 17 plants with a height greater than 24 cm. Give your answer correct to 1 decimal place.

Worked solution & mark scheme

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