Edexcel S2 June 2014 – Q3

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Part (b):
Part (c):
Part (d):
Part (e):
Edexcel S2 June 2013 – Q3

Part (a):
Part (b):
Part (c) - Probability Method:
Part (c) - Critical Value Method:
Edexcel S2 January 2012 – Q7

Part (a):
Part (b):
Part (c) - Probability Method:
Part (c) - Critical Value Method:
Edexcel S2 January 2009 – Q6

Part (a)(i):
Part (a)(ii):
Part (b):
(The visits occur) randomly/ independently or singly or constant rate
Part (c):
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