A box has seven same size balls of four different colors: red, yellow, blue and green. A person is asked to pick one ball at a time and guess the color of that ball without seeing it. If the person picks all balls and randomly guesses the colors, find the probability that he will guess the color of five balls correctly.
A box has seven same size balls of four different colors: red, yellow, blue and green. A person is asked to pick one ball at a time and guess the color of that ball without seeing it. If the person picks all balls and randomly guesses the colors, find the probability that he will guess the color of five balls correctly.
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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