Mrs Salaman gives her class two mathematics tests. The scatter diagram shows information about the marks each student scored. Draw a line of best fit on the scatter diagram.

Mathematics

IGCSE&ALevel

CAIE

Exam No：0580_s20_qp_21 Year：2020 Question No：3(c)

Answer:

Ruled line of best ﬁt

E9.8 Draw, interpret and use lines of best fit by eye.

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