a bag contains 3 green, 4 blue, 2 red, 1 black, 6 yellow and 4 brown marbles. suppose you randomly select a marble, replace it in the bag, and randomly pick a second
marble. what is the probability you pick a blue marble and then another blue marble?

1/25

Step-by-step explanation:

At the start there is a 4/20 (1/5) chance of drawing a blue marble. After putting the marble back in the bag, there is again a 1/5 chance of drawing a blue marble again. To calculate the overall probability, you must multiply the two numbers together: 1/5 x 1/5 = 1/25.

part a: 1.08

part b: 27.59