FAN AND MEDAL
The number of marbles of different colors stored in a hat is listed below:
8 red marbles
10 green marbles
6 blue marbles
Without looking in the hat, Tessa takes out a marble at random. She replaces the marble and then takes out another marble from the hat. What is the probability that Tessa takes out a blue marble in both draws?
fraction 1 over 16
fraction 1 over 12
fraction 1 over 4
fraction 1 over 2

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- ankit042

prob of blue marble =8/(8+10+6)
Now there is a replacement involved so we will have 8/24 * 8/24

- anonymous

@MrNood leave

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## More answers

- ankit042

sorry it should be 6/24

- anonymous

so c

- MrNood

there are 24 marbles altogether
she has 6 in 24 chances of drawing blue on the first time (write that as a simper fraction)
the second time is INDEPENDENT of the first - so the chances are the same both times (she replaces the original blue one)
so the chances of 2 independent 6 in 24 events is???

- MrNood

it is not c

- welshfella

first simplify 6/24

- anonymous

and its c

- MrNood

I have to be persistent her:
you are not helping by giving wrong answers
it is not c

- welshfella

no - there are 2 draws
probability of 1 draw = 1/4
you multiply probabilities for 2 draws

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