A company has 10 PCs in stock. Although the equipment is new, there are 4 that do not work properly. There is a requirement for 5 teams in a department and the warehouse picks the teams. a) What is the probability that all equipment works correctly? b) What is the probability that at most 3 devices work correctly? c) The expected value, the variance and the standard deviation.

A company has 10 PCs in stock. Although the equipment is new, there are 4 that do not work properly. There is a requirement for 5 teams in a department and the warehouse picks the teams. a) What is the probability that all equipment works correctly? b) What is the probability that at most 3 devices work correctly? c) The expected value, the variance and the standard deviation.

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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