When tossed, a certain coin has equal probability of landing on either side. If the coin is tossed 3 times, what is the probability that it will land on the same side each time?
A. 1/8
B. 1/4
C. 1/3
D. 3/8
E. 1/2
OA-B
IMO=>Let coin lands on head side
so, P(head) = 1/2
3 times tossed= (1/2)*(1/2)*(1/2) =1/8
But this is not the answer.
Please correct me.
A. 1/8
B. 1/4
C. 1/3
D. 3/8
E. 1/2
OA-B
IMO=>Let coin lands on head side
so, P(head) = 1/2
3 times tossed= (1/2)*(1/2)*(1/2) =1/8
But this is not the answer.
Please correct me.
Last edited by gmat740 on Tue Jul 28, 2009 4:39 am, edited 1 time in total.
