Solution: 2015 Winter Midterm - 15
Author: Michiel SmidQuestion
You flip a fair coin 5 times. Define the event
- A = "the number of heads is odd".
(a)
6/8
(b)
4/8
(c)
3/8
(d)
5/8
Solution
$ Pr\text{(number of heads is even)}=1/2 $
$ Pr\text{(number of heads is odd)}=1/2 $
$ Pr\text{(number of tails is even)}=1/2 $
$ Pr\text{(number of tails is odd)}=1/2 $
1/2 is the answer