A box contains 10 fuses. Eight of them rated at 10 amperes (A) and the other two are rated at 15 A. Two fuses are selected at random. What is the probability that the second fuse is rated at 15 A, given that the first one is rated at 10A?

A box contains 10 fuses. Eight of them rated at 10 amperes (A) and the other two are rated at 15 A. Two fuses are selected at random. What is the probability that the second fuse is rated at 15 A, given that the first one is rated at 10A?

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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Question

A box contains 10 fuses. Eight of them rated at 10 amperes (A) and the other two are rated at 15 A. Two
fuses are selected at random. What is the probability that the second fuse is rated at 15 A, given that the first
one is rated at 10A?

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