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80 draws are made at random with replacement from a box with two tickets labeled 4 and 2. 35 of the draws turn out to be 4's and the rest 2's. What is the sum? 250 225 245 230 265

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