We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
88
1
avatar

\(\text{A bag has 4 red marbles, 5 white marbles, and 6 blue marbles. Three marbles are drawn from the bag (without replacement). What is the probability that they are all the same color? }\)

 Sep 8, 2019
 #1
avatar+6045 
0

\(p = \dfrac{\dbinom{4}{3}\dbinom{5}{0}\dbinom{6}{0}+\dbinom{4}{0}\dbinom{5}{3}\dbinom{6}{0}+ \dbinom{4}{0}\dbinom{5}{0}\dbinom{6}{3}}{\dbinom{15}{3}} = \dfrac{34}{455}\)

.
 Sep 8, 2019

43 Online Users

avatar