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

Mathematics

Mark Marsh

3 December, 07:05

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

+2

Answers (1)

Know the Answer?

Lilliana Medina · 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