An urn contains 100 marbles. Fifty are purple, ten are green, fifteen are red, and twenty five are orange. Two marbles are drawn at random one after another with replacement. Calculate each probability. a. P (purple and orange) b) P (green and green)

Question

Shirley Gross

Mathematics

5 July, 02:14

An urn contains 100 marbles. Fifty are purple, ten are green, fifteen are red, and twenty five are orange. Two marbles are drawn at random one after another with replacement. Calculate each probability. a. P (purple and orange) b) P (green and green)

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Answers (2)

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Fleming · Answer 1

A - 1/2 and 1/4 (or together is 75%) B - 1/10 and 1/10

Step-by-step explanation:

50 purple

10 green

15 red

25 orange

Total = 100

Kash Spence · Answer 2

To find A you would first take the 50 purple and 25 orange and combine them, this would give you 75 you would then put that over a 100 since there's a 100 marbles total so 75/100=.75 which is 75% you would do the same for the green 10/100=.1 so a) 75% and b).1% or 10%