1
$\begingroup$

An experimental drug is being tested for side effects. The producers of the drug claim that only 5% of users will experience side effects. If 20 people are tested what is the probability that 2 or more will experience side effects?

Answer: 0.2641

How do you do this problem? Looking at the Probability Wikibook didn't help me..

  • 0
    It's out of this Barron's Fundamentals of Engineering (FE) Exam book. I looked at the reference book and in this Barron's book too, but they don't give much explanation.2011-03-27

1 Answers 1