Practice By Tag: Independent Events
Question: 2014 Winter Final - 201 .
I flip two fair and independent coins. If the first coin comes up heads, you win \$1.
If the second coin comes up heads, you win \$2. (Thus, if both coins come up heads, you win \$3.)
Define the random variable $X$ to be the amount of dollars that you win. What is the expected
value of $X$?
(a)
5/2
(b)
3/2
(c)
2
(d)
3