Apps. and Interpretation for IBDP Maths Ebook 1 | Page 316

Your Practice Set – Applications and Interpretation for IBDP Mathematics
90
Paper 1 – Scatter Diagrams
Example
The following scatter diagram shows the marks scored by six students on two different
assessments, Assessment 1 ( x ) and Assessment 2 ( y ):
(a)
(b)
(c)
Plot and label the mean point M(50, 60) on the scatter diagram.
Draw a suitable line of best fit on the scatter diagram.
Using the line of best fit to estimate the marks scored by a student in the
Assessment 2 when the corresponding marks scored in the Assessment 1 is 0,
giving the answer correct to the nearest integer.
[2]
[2]
[2]
306
SE Production Limited