deadslinger5134
11.11.2021 •
Mathematics
I get a 2 try plz answer
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Ответ:
Step-by-step explanation:
It is given that a bag has 1 red marble, 4 blue marbles, and 3 green marbles.
Total number of marbles in the bag = 1 + 4 + 3 = 8
Let A be the event of getting blue marble.
Probability of getting blue marble is
Peter replaces first marble, and then draws another marble randomly. So, the events of drawing any marble is independent of other events.
The probability of getting second blue marble is 1/2.
The probability of drawing 2 blue marbles in a row is
Therefore, the probability of drawing 2 blue marbles in a row is 1/4.