SOA Exam P Sample Question 203
Study guide: Exam P-1
Four distinct integers are chosen randomly and without replacement from the first twelve positive integers. X is the random variable representing the second smallest of the four selected integers, and p is the probability function of X.
Determine p(x) for x = 2,3,\ldots,10.
- A)
\frac{(x-1)(11-x)(12-x)}{495} - B)
\frac{(x-1)(11-x)(12-x)}{990} - C)
\frac{(x-1)(x-2)(12-x)}{990} - D)
\frac{(x-1)(x-2)(12-x)}{495} - E)
\frac{(10-x)(11-x)(12-x)}{495}
Answer this question and see the worked solution