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Sagot :
Answer:
Step-by-step explanation:
probability of event # 1 + probability of event # 2 = probability of picking green then blue
probability of event # 1 - chance of drawing green / total # of the possiblities
chance of drawing green = 6
total # of the possibilities = 4(blue) + 6(blue)
total # of the possibilities = 10
probability of event # 1 - 6/10 or 3/5
probability of event # 2 - chance of drawing blue / total # of the possibilities - 1 green
chance of drawing blue = 4
total # of the possibilities - 1 green = 10 - 1
total # of the possibilities - 1 green = 9
probability of event # 2 - 4/9
probability of picking green then blue = 3/5 + 4/9
3 x 4 12
-------- = ------
5 x 9 45
probability of picking green then blue = 12/45 or 4/15
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