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Unsure what to do for this (Probability higher past paper) Watch

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    Howdy .




    The mark scheme says the answer is 25 but doesn't really explain how to calculate and I can't figure out what to do .
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    (Original post by makin)
    Howdy .




    The mark scheme says the answer is 25 but doesn't really explain how to calculate and I can't figure out what to do .
    http://justmaths.co.uk/wp-content/up...LUTIONS-v2.pdf

    Q4 has the solutions to this question, don't have time to look right now, hopefully this helps
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    (Original post by LewisClothier)
    http://justmaths.co.uk/wp-content/up...LUTIONS-v2.pdf

    Q4 has the solutions to this question, don't have time to look right now, hopefully this helps
    Thanks, that should be enough to help me .
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    (Original post by makin)
    Thanks, that should be enough to help me .
    Not a problem, good luck in your exams!
 
 
 
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