The mathematics and statistics examination marks for a group of ten students are shown in Table 8.8.

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The mathematics and statistics examination marks for a group of ten students are shown in Table 8.8.

(a) Find the correlation coefficient for the two sets of marks.

(b) Place the marks in rank order and calculate the rank correlation coefficient.

(c) The following is a quotation from a statistics text ‘Rank correlation can be used to give a quick approximation to the product moment correlation coefficient’.

Comment on this in the light of your results.

Mathematics Statistics Table 8.8 89 51 73 57 53 49 53 | 50 51 48 49 21 47 46 44 19 42 43 38 43

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Business Statistics Using Excel

ISBN: 9780199659517

2nd Edition

Authors: Glyn Davis, Branko Pecar

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