Question

An urn contains 3 red, 5 blue, 4 green and 6 orange marbles. A marble is drawn from the urn at
random. What is the probability that it is:
(a) a green marble?
(b) not a red marble?
(c) either blue or orange marble?
(d) an orange marble?

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Answer 1

Answer:

a.2/9

b.15/18

c.11/18

d.1/3

thanks

Answer 2

Answer:

(a)4/18

2/9 is the probability of getting a green marble

(b)18-3/18

15/18

5/6 is the probability of not getting a red marble

(c)5+6/18

11/18 is the probability of getting either a blue or an orange marble

((d)6/18

1/3 is the probability of getting an orange marble

thank you

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