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There is a box containing 6 tickets. On five og the tickets there is a picture of a tree, the other ticket is blank. If 30 draws are made at ramdom with replacement from this box, what is the chance of the 1st draw being a tree AND the last draw to be a tree?
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  • 2/30
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  • 25/36
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    Carlos Rodriguez <carlos@math.albany.edu>
    This problem was contributed by a student in Elementary Statistics. It is offered as it is with no warranty of any kind
    Last modified: Wed May 13 12:29:11 EDT 1998