A box contains 5 red, 6 green, 7 blue and 2 yellow coloured pencils.
Jenny picks one out of the box
a) What is the probability that it is a green pencil
b) She does NOT replace the pencil, but draws another one
What is the probability that this is a blue pencil
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Answer:
a. p(getting green pencil) = 6 / 20 = 3/10
b. p(getting blue pencil) = 7/20
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