A certain roller coaster has 2 cars, and a passenger is equally likely to ride in any 1 of the 2 cars each time that passenger rides the roller coaster. If a certain passenger is to ride the roller coaster 2 times, what is the probability that the passenger will ride in each of the 2 cars? Choose the correct choice from the following answers:
A) 0	B) 1/2	C) 2/9	D) 1/3	E) 1
If he is to ride 2 times and since he can choose any of the 2 cars each time, total number of ways is   = 2 * 2= 
<gadget id="calculator">2 * 2</gadget>
<output>4</output>
4   Now the number of ways if he is to choose a different car each time is= 2 * 1= 
<gadget id="calculator">2 * 1</gadget>
<output>2</output>
2   So the probability is= 2/4   = 1/2   Answer : 1/2
<result>B</result>
A certain roller coaster has 2 cars, and a passenger is equally likely to ride in any 1 of the 2 cars each time that passenger rides the roller coaster. If a certain passenger is to ride the roller coaster 2 times, what is the probability that the passenger will ride in each of the 2 cars?