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McKillup, Steve, Statistics explained: an introductory guide for life scientists, Illustrated edition. Cambridge, UK: Cambridge University Press, 2006 [Online]. Available: http://ezproxy.library.qmul.ac.uk/login?url=http://www.vlebooks.com/vleweb/product/openreader?id=QMUL&isbn=9780511566950&uid=^u
[2]
McKillup, Steve, Statistics explained: an Introductory guide for life scientists. Cambridge: Cambridge University Press, 2011.