127,744 views
36 votes
36 votes
A jar contains nine black buttons and four brown buttons. If nine buttons are picked

at random, what is the probability that all of them are black?

User Emilien Brigand
by
2.4k points

1 Answer

14 votes
14 votes

Answer:

9/13

Explanation:

Total = 9 + 4

= 13

Probability: 9/13

User Ankit Agarwal
by
3.5k points