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One thousand draws are made at random from a box with replacement. The box contains two tickets one with the number 1 and one with the number 2. 530 draws turn out to be 1 and the remaining 470 are 2. How much is the sum? 1500 1000 1530 1470 1560

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