In a jar of 50 marbles, there are 10 marbles of each colour that are red, green, and blue, and 20 marbles that are orange. Calculate the probability of the following scenarios:   a.) Drawing 5 marbles in a row, without replacing them, and having them all the same colour.   b.) Drawing 5 marbles in a row, with replacing them, and having them all the same colour.   c) Drawing 4 marbles in a row, putting them back in the jar as you go, and ending up with 2 blue and 2 orange marbles.

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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In a jar of 50 marbles, there are 10 marbles of each colour that are red, green, and blue, and 20 marbles that are orange. Calculate the probability of the following scenarios:
 
a.) Drawing 5 marbles in a row, without replacing them, and having them all the same colour.
 
b.) Drawing 5 marbles in a row, with replacing them, and having them all the same colour.
 
c) Drawing 4 marbles in a row, putting them back in the jar as you go, and ending up with 2 blue and 2 orange marbles.
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