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d1i1m1o1n [39]
3 years ago
8

A bag contains 5 red marbles, 6 blue marbles and 9 yellow marbles.

Mathematics
1 answer:
lilavasa [31]3 years ago
7 0

Answer:

Step-by-step explanation:

The total number of marbles is 20

Question A

P(Red) = 4/20 = 1/5

P(yellow) = 9/20

P(Red then Yellow) = 1/5 * 9/20 = 9 / 100

Question B

P(B) = 6/20

P(B again) = 5/19 because you  have 1 less total plus 1 less blue.

P(B and B) = 6/20 * 5/19

P(B and B) = 30/ 380 = 3/38

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