SOLUTION: A box contains 2 black balls and 3 gold balls. 2 balls are randomly drawn in succession from the box. A. If there is no replacement, what is the probability that both balls are bl

Algebra ->  Probability-and-statistics -> SOLUTION: A box contains 2 black balls and 3 gold balls. 2 balls are randomly drawn in succession from the box. A. If there is no replacement, what is the probability that both balls are bl      Log On


   

Question 201809: A box contains 2 black balls and 3 gold balls. 2 balls are randomly drawn in succession from the box.
A. If there is no replacement, what is the probability that both balls are black?
B. If there is replacement before the secon draw, what is the probability that both balls are black?
Thanks!
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
A) 2/5*1/4=2/20=1/10
B) 2/5*2/5=4/25