SOLUTION: A box contains 3 coins: one coin with two sides-head & tail, one coin two headed and one coin with probability of heads is 1/3. A coin is selected at random and tossed. Find the pr

Algebra ->  Probability-and-statistics -> SOLUTION: A box contains 3 coins: one coin with two sides-head & tail, one coin two headed and one coin with probability of heads is 1/3. A coin is selected at random and tossed. Find the pr      Log On


   

Question 874933: A box contains 3 coins: one coin with two sides-head & tail, one coin two headed and one coin with probability of heads is 1/3. A coin is selected at random and tossed. Find the probability that head appears.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

3coins: 2*3 = 6 possible outcomes

 P(head) = (1st coin  2nd coin   3rd coin

                  (  1H       + 2H    + (1 + 0 + 0)H)/6 = 4/6 = 2/3