A marble is selected at random from a jar containing 3 red​ marbles, 2 yellow​ marbles, and 4 green marbles. Find the probability that it is the following.   ​a) the marble is not yellow ​b) the marble is either red or green What is the probability that the marble is not​ yellow?   ​(Simplify your answer. Type a​ fraction.) What is the probability that the marble is red or​ green?   ​(Simplify your answer. Type a​ fraction.)

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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A marble is selected at random from a jar containing
3
red​ marbles,
2
yellow​ marbles, and
4
green marbles. Find the probability that it is the following.
 
​a) the marble is not yellow
​b) the marble is either red or green
What is the probability that the marble is not​ yellow?
 
​(Simplify your answer. Type a​ fraction.)
What is the probability that the marble is red or​ green?
 
​(Simplify your answer. Type a​ fraction.)
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