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Thread: Would anyone check my solutions to a few probability questions

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    Would anyone check my solutions to a few probability questions

    https://imgur.com/gallery/w3DX7QV

    Please can you check through my solutions and see what mistakes I’m making. I must admit 17b I had no clue

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    Junior Member HeroWise's Avatar
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    Re: Would anyone check my solutions to a few probability questions

    Working out for 17 a , in the HSC requires this step

    the ensures you get any card and the is any other specific card

    17 b is



    Uses binomials
    Last edited by HeroWise; 1 Jul 2018 at 10:13 AM.

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    Re: Would anyone check my solutions to a few probability questions

    For 18

    Count all the yellows and the blue only once you should get 11 total outcomes. I understand in you thinking its from the total set but if u think about it the question is talking about "atleast 3" only.

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    Re: Would anyone check my solutions to a few probability questions

    Quote Originally Posted by HeroWise View Post
    For 18

    Count all the yellows and the blue only once you should get 11 total outcomes. I understand in you thinking its from the total set but if u think about it the question is talking about "atleast 3" only.
    Are the others correct?

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