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Alja [10]
2 years ago
9

You pick two marbles from a bag with 5 blue marbles, 3 red marbles, and 2 green marbles. You pick the second marble without repl

acing the first one. Find each probability.
P(red then blue)
P(two blues)
P(green then yellow)
Mathematics
1 answer:
SOVA2 [1]2 years ago
7 0

Answer:

1/9

Step-by-step explanation:

3 red

2 blue

5 green

Total

3

+

2

+

5

=10

Probability of blue is

2

10

~~~~~~~~~~~~~~~~~~~~~~~

Second condition:

3 red

1 blue

5 green

New total

3

+

1

+

5

=

9

Probability of green is

5

9

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Total probability of selecting this path is:

2

10

×

5

9

=

2

9

×

5

10

 

=

2

9

×

1

2

=

1

9

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