• 1)

    Edexcel S2 June 2014 – Q3
    View Solution

    Part (a):

    Part (b):

    Part (c):

    Part (d):

    Part (e):

  • 2)

    Edexcel S2 June 2013 – Q3
    View Solution

    Part (a):

    Part (b):

    Part (c) - Probability Method:

    Part (c) - Critical Value Method:

  • 3)

    Edexcel S2 January 2012 - Q7
    View Solution

    Part (a):

    Part (b):

    Part (c) - Probability Method:

    Part (c) - Critical Value Method:

  • 4)

    Edexcel S2 June 2011 – Q2
    View Solution

    Part (a):

    Part (b):

    Part (c):

  • 5)

    Edexcel S2 January 2009 – Q6
    View Solution

    Part (a)(i):

    Part (a)(ii):

    Part (b):

    (The visits occur) randomly/ independently or singly or constant rate

    Part (c):