Question
A certain public examination has a consistent past record of a 25% failure rate. For a group of 15 people writing the examination this year,
A certain public examination has a consistent past record of a 25% failure rate. For a group of 15 people writing the examination this year, calculate the probability that:
a. at least 12 will pass; (4 marks)
b. all will pass.(4 marks)
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Challenging Math Problems
Authors: Terry Stickels
1st Edition
0486808572, 9780486808574
