Rani has a bag with three blue and three yellow coins. she takes out a coin, sees its colour and puts it back in the bag. she does this thrice. what is the probability that she saw all blue coins. op 1:
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The total coins = 6
Yellow coins = 3
Blue coins = 3
The probability of getting a blue coin = 3/6 = 1/2
The probability of getting a yellow = 3/6 = 1/2
The probability of getting all blue is :
Probability of getting a blue and a probability of getting a blue and probability of getting a blue :
P(all blue) = P(Blue) and P(Blue) and P(Blue)
= 1/2 × 1/2 × 1/2 = 1/8
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Answer:
The total coins = 6
Yellow coins = 3
Blue coins = 3
The probability of getting a blue coin = 3/6 = 1/2
The probability of getting a yellow = 3/6 = 1/2
The probability of getting all blue is :
Probability of getting a blue and a probability of getting a blue and probability of getting a blue :
P(all blue) = P(Blue) and P(Blue) and P(Blue)
= 1/2 × 1/2 × 1/2 = 1/8
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