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    Could someone please tell me how I would work out question 4 (ii). I can’t remember ever being taught how to work anything like this this out and can’t find anything in my notes or textbook. Name:  70D7608A-126F-4A99-8683-3AB269D94445.jpg.jpeg
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    E(x)= the summation of x times p (x)
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    just multiply each box in the top row by the box beneath.... then add 'em up
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    (Original post by Radioactivedecay)
    E(x)= the summation of x times p (x)
    Ok, thank you! So weird, never been taught this
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