Register
You have 8 orange marbles, 7 green, and 6 yellow. select 2 marbles at random without replacement what is the probability that both marbles are the same color?
200k views
4 votes
You have 8 orange marbles, 7 green, and 6 yellow. select 2 marbles at random without replacement what is the probability that both marbles are the same color?

User ThrowsError
by
7.6k points

1 Answer

6 votes
Total = 8 + 7+ 6 = 21
P(Orange and Orange) = 8/21 x 7/20 = 2/15
P(Green and Green) = 7/21 x 6/20 = 1/10
P(Yellow and Yellow) = 6/21 x 5/20 = 1/14
Total Probability = 2/15 + 1/10 + 1/14 = 32/105
User AndreLDM
by
8.6k points
← Prev Question Next Question →

No related questions found

Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
The cost of 5 similar digital cameras and 3 similar video cameras is 3213. Each video camera costs 4 times as much as each digital camera. John buys a digital camera and a video camera. How much does he
Mr. Jacob is 55 years old and tony is 7 years old. in how many years will mr. Jacobs be 4 times as old as Tony
Link Copied!