April 13 PSSA Math Boot Camp

Our April 13, 2009 PSSA math challenge problem involved geometric probability: the probability of a bug landing on a balloon shapes on a cake. Answer is B.

• The problem.
• The problem and solution.

--Mr. Bujak

January 9 PSSA Math Boot Camp Winner

Our January 9, 2009 PSSA math challenge problem winner is Odell Anderson. Odell solved a classic probability problem of random selection without replacement. To help him visualize a solution, Odell drew an illustration of the marbles after the 1st pick pulled a green marble (left on outside of box) and the remaining green and red marbles on the inside of the box during the 2nd pick.

• The problem and solution.
  
• Odell Anderson's solution.
• Odell won $5.

--Mr. Bujak