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anonymous
 one year ago
A bag has 1 red marble, 4 blue marbles, and 3 green marbles. Peter draws a marble randomly from the bag, replaces it, and then draws another marble randomly. What is the probability of drawing 2 blue marbles in a row? Explain your answer.
anonymous
 one year ago
A bag has 1 red marble, 4 blue marbles, and 3 green marbles. Peter draws a marble randomly from the bag, replaces it, and then draws another marble randomly. What is the probability of drawing 2 blue marbles in a row? Explain your answer.

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misty1212
 one year ago
Best ResponseYou've already chosen the best response.1you got a clue or you want to go real slow?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I kinda have a clue but im not sure

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1ok so lets take it step by step how many marbles are in the bag total?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1ok and how many are blue?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1ok good, so what is the probability that the first one selected is blue?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1make a guess, if you are wrong i will tell you

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1yeah \[\frac{4}{8}\] except that you really want to say \(\frac{1}{2}\) same thing

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1now you put the marble back (it says that) so you still have 4 blue marbles in the bag and 8 total

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh so it would be 1/2 again?

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1yes and for them both to happen, blue and then blue again, the probability is the product of those two

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1i.e. \[\frac{1}{2}\times \frac{1}{2}\]

misty1212
 one year ago
Best ResponseYou've already chosen the best response.1hope that is more or less clear
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