A bag contains 4 white, 2 blue, and 6 red marbles. A marble is drawn from the bag, replaced, and another marble is drawn. Find the following

probabilities:

Enter your answers a simplified fractions, with / representing the fraction bar

1. both marbles are red

2. both marbles are blue

3. the first marble is red and the second is blue

other is red

Question

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Mathematics

20 June, 22:04

A bag contains 4 white, 2 blue, and 6 red marbles. A marble is drawn from the bag, replaced, and another marble is drawn. Find the following

probabilities:

Enter your answers a simplified fractions, with / representing the fraction bar

1. both marbles are red

2. both marbles are blue

3. the first marble is red and the second is blue

other is red

+4

Answers (1)

Know the Answer?

Kendall Lyons · Answer 1

Step-by-step explanation:

Total marble = 6+4+2 = 12

n (W) = 4

n (B) = 2

n (R) = 6

P (W) = 4/12 = 1/3

P (B) = 2/12 = 1/6

P (R) = 6/12 = 1/2

1. P (R and R) = 1/2 * 1/2 = 1/4

2. P (B and B) = 1/6 * 1/6 = 1/36

3. P (R and (B or R) = 1/6 * (1/6+1/2)

= 1/6 * (2/3)

= 1/9