A box contains 50 balls, exactly ten of them are red and the others are black. If five balls are chosen at random from the box: а. Find the probability that all of them are black b. Knowing that the first two balls are red, what is the probability that the third one is black? c. What is the probability that the second ball is 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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A box contains 50 balls, exactly ten of them are red and the others are black. If five balls are
chosen at random from the box:
а.
Find the probability that all of them are black
b.
Knowing that the first two balls are red, what is the probability that the third one is black?
C.
What is the probability that the second ball is red
Transcribed Image Text:A box contains 50 balls, exactly ten of them are red and the others are black. If five balls are chosen at random from the box: а. Find the probability that all of them are black b. Knowing that the first two balls are red, what is the probability that the third one is black? C. What is the probability that the second ball is red
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