SOLUTION: Suppose I pick (without looking) a jelly bean from a box containing four red beans and seven blue beans. I record the color and put the bean back in the box. Then I choose a bean a

Algebra ->  Probability-and-statistics -> SOLUTION: Suppose I pick (without looking) a jelly bean from a box containing four red beans and seven blue beans. I record the color and put the bean back in the box. Then I choose a bean a      Log On


   



Question 1126241: Suppose I pick (without looking) a jelly bean from a box containing four red beans and seven blue beans. I record the color and put the bean back in the box. Then I choose a bean again.
What is the probability of getting a blue bean both times?

Answer by ikleyn(52899) About Me  (Show Source):
You can put this solution on YOUR website!
.
%287%2F%285%2B7%29%29%2A%285%2F%285%2B7%29%29 = %285%2F12%29%5E2 = 49%2F144.

Note that the formula in this post is SELF-EXPLANATORY.