• 1)

    Edexcel S2 January 2013 – Q6
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    Parts (a) and (b):

    Part (c) - Method 1:

    Part (c) - Method 2:

    Part (d):

  • 2)

    Edexcel S2 June 2012 – Q2
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    Part (a):

    Part (b):

  • 3)

    Edexcel S2 January 2012 – Q2
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    Method 1 - Probability Method:

    Method 2 - Critical Value Method:

  • 4)

    Edexcel S2 January 2009 – Q3
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    Part (a):

    Part (b):

    Part (c):