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helloitschump0vfdz
14.04.2021 •
Mathematics
A bag contains 9 green marbles and 12 pink marbles. One marble is chosen at random and returned to the bag. Then, a second marble is chosen at random.
What is the probability that both marbles chosen will be green?
9/49
81/122
3/4
6/9
Solved
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Ответ:
3/4
Step-by-step explanation:
Ответ:
bruv
Step-by-step explanation:
Ответ:
BB (0.52)(0.52) = 0.2704
BG (0.52)(0.48) = 0.2496
GB 0.2496
GG (0.48)(0.48) = 0.2304
c)
Number of girls born:
x P(x)
0 0.2704
1 0.4992
2 0.2304