that doesn't sound right, I think the question is to draw 6...

  1. 112 Posts.
    that doesn't sound right, I think the question is to draw 6 crosses in any of the 10 times, not 6 crosses consecutively. for example, the first 2 draws might not be crosses, but the next 8 draws to contain 6 crosses somewhere in them.

    I think you need to construct a probability tree for this.
 
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