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Posted by on Monday, September 7, 2009 at 2:43pm.

a set of building blocks includes blocks of various shapes and colors. if 10% of the blocks are cubes, and 40% of the cube blocks are red, then what percentage of the blocks are red cubes

  • statistics - , Tuesday, September 8, 2009 at 1:26pm

    Assuming the colours are uniformly distributed over the shapes, we can use the multiplication rule to get
    P(red cubes)=P(red)*P(cubes)=0.4*0.1=0.04

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