IGCSE数学样题May-June 2010_2
11 Fifteen children ran a 60 metre race. In the scatter diagram below, the time taken is plotted against the age for each child.
Time(seconds)
Age (years)
(a) Draw a line of best fit on the scatter diagram.
[1]
(b) What type of correlation does the scatter diagram show?
Answer(b)
[1]
(c) Describe how the times taken change with the ages of the children.
Answer (c)
[1]
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