Answer :
Probability of picking a blue marble : 6 / 15 = 2/5
Probability of picking a red marble: 5 / 15 = 1/3
2/5 * 1/3 = 2/15
Answer: C ) 2/15
Probability of picking a red marble: 5 / 15 = 1/3
2/5 * 1/3 = 2/15
Answer: C ) 2/15