12) A bag contains 200 balls that are either red or blue and either dull or shiny. There are 55 shiny red balls, 91 shiny balls, and 79 red balls. If a ball is chosen at random, what is the probability that it is either a shiny ball or a red ball? . 13) A ball is chosen at random from a bag containing 150 balls that are either red or blue and either dull or shiny. There are 36 red shiny balls and 54 blue balls. What is the probability of the chosen ball being shiny conditional on it being red?

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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12) A bag contains 200 balls that are either red or blue and either dull or shiny.
There are 55 shiny red balls, 91 shiny balls, and 79 red balls. If a ball is chosen at
random, what is the probability that it is either a shiny ball or a red ball? .
13) A ball is chosen at random from a bag containing 150 balls that are either red
or blue and either dull or shiny. There are 36 red shiny balls and 54 blue balls.
What is the probability of the chosen ball being shiny conditional on it being red?
Transcribed Image Text:12) A bag contains 200 balls that are either red or blue and either dull or shiny. There are 55 shiny red balls, 91 shiny balls, and 79 red balls. If a ball is chosen at random, what is the probability that it is either a shiny ball or a red ball? . 13) A ball is chosen at random from a bag containing 150 balls that are either red or blue and either dull or shiny. There are 36 red shiny balls and 54 blue balls. What is the probability of the chosen ball being shiny conditional on it being red?
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