10. A bowl contains 4 red balls and 2 green balls. Two balls are selected simultaneously and at random. What is the conditional probability that both balls are red given that at least one of the selected balls is red? (A) 2/3 (B) 3/7 (C) 4/5 (D) 3/4 (E) 6/7

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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10. A bowl contains 4 red balls and 2 green balls. Two balls are selected simultaneously and at
random. What is the conditional probability that both balls are red given that at least one of the
selected balls is red?
(A) 2/3 (B) 3/7 (C) 4/5 (D) 3/4 (E) 6/7
Transcribed Image Text:10. A bowl contains 4 red balls and 2 green balls. Two balls are selected simultaneously and at random. What is the conditional probability that both balls are red given that at least one of the selected balls is red? (A) 2/3 (B) 3/7 (C) 4/5 (D) 3/4 (E) 6/7
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