SOLUTION: Suppose 5 red marbles and 6 white marbles are placed in a bag. You pick one marble out of the bag, do not replace it, then pick a second marble out of the bag. a student claims the

Question 988418: Suppose 5 red marbles and 6 white marbles are placed in a bag. You pick one marble out of the bag, do not replace it, then pick a second marble out of the bag. a student claims the probability of picking two red marbles is 5/11*4/11=20/121. explain why the student is correct or incorrect
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
Sampling with replacement, the probability is (5/11)*(4/10), because there are 10 marbles left in the bag but only 4 of them are red. Both the numerator and denominator decrease by 1.
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