1 12-61. A speaks the truth 2 out of 3 times and B 4 out of 5 times: they agree in the assertion that from a bag containing 6 balls of different colours, a black ball has been drawn. Find the probability that the statement is true.,

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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t - 12-61. A speaks the truth 2 out of 3 times and B 4 out of 5 times; they agree in the assertion
that from a bag containing 6 balls of different colours, a black ball has been drawn. Find the probability
that the statement is true.
th
Transcribed Image Text:t - 12-61. A speaks the truth 2 out of 3 times and B 4 out of 5 times; they agree in the assertion that from a bag containing 6 balls of different colours, a black ball has been drawn. Find the probability that the statement is true. th
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