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There are 5 different colored balls in a box. There is 1 white, 2 red, 1 blue, and 1 black. What is the chances of picking a red ball then a black ball with out replacement. 2/25 13/20 2/9 1/10 3/5

You may use the calculator above and this area as scratch paper. To see the solution just click on the button.

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