SOLUTION: A box contains 6 blocks, identical except for color. The colors are two red, two white, and two blue. Two blocks of unknown color are randomly selected and placed in a bag. A block

Question 807015: A box contains 6 blocks, identical except for color. The colors are two red, two white, and two blue. Two blocks of unknown color are randomly selected and placed in a bag. A block is then selected from the bag.
A. What is the probability that the block is red?
B. After noticing that the block is red, it is replaced in the bag. What is the probability that both blocks in the bag are red?
C. A block is again removed from the bag and observed to be red, then replaced in the bag. What is the probability that both blocks in the bag are red?
Answer by oscargut(2103) (Show Source): You can put this solution on YOUR website!
A) 1/3
If you need more help with this kind if questions, you can contact me now at:
mthman@gmail.com
Thanks

RELATED QUESTIONS
A box contains two white, two red, and two blue poker chips. Two chips are randomly... (answered by Fombitz)

A box has 6 blue socks and 4 white socks. Find the number of ways two socks can be drawn (answered by ikleyn)

A box contains five blue, three red and two white identical balls. If two balls are... (answered by Edwin McCravy)

A box contains five red, three blue, and two white poker chips. Two are selected without... (answered by MathLover1)

A box contains 20 blocks. Fifteen of the blocks are red, the rest are green. If 6 blocks... (answered by ewatrrr)

A box contains 7 identical marbles, except for color, of which 4 are red and 3 are... (answered by ikleyn)

A box contains 5 blue,7 green and 4 red identical balls. Three balls are picked from the... (answered by greenestamps)

A box contains 5 red, 4 blue and 3 white balls. In how many ways can we select 3 balls... (answered by sudhanshu_kmr)

An urn contains 8 balls identical in every respect except color. There are 4 blue... (answered by stanbon)