The Human Resources office in a company observes the pattern of absences of employees by days of the week. The company is closed on weekends. The company has 100 employees and over 10 weeks (5000 employee appearances) they notice that there were 100 absences, of which 40 were on the days closest to a weekend (Mondays and Fridays.) Let A = an employee is absent on a day which is a Monday or Friday Let B = an employee is absent on a day which is a Tuesday, Wednesday or Thursday. Let C = a day is a Monday or Friday What is the event A U B? What is P(A U B) ? Why is A ∩ B = ∅ ? What is P(A) ? What is P(C) ? What is P(A | C)? Are A and C independent?.

The Human Resources office in a company observes the pattern of absences of employees by days of the week. The company is closed on weekends. The company has 100 employees and over 10 weeks (5000 employee appearances) they notice that there were 100 absences, of which 40 were on the days closest to a weekend (Mondays and Fridays.) Let A = an employee is absent on a day which is a Monday or Friday Let B = an employee is absent on a day which is a Tuesday, Wednesday or Thursday. Let C = a day is a Monday or Friday What is the event A U B? What is P(A U B) ? Why is A ∩ B = ∅ ? What is P(A) ? What is P(C) ? What is P(A | C)? Are A and C independent?.

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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The Human Resources office in a company observes the pattern of absences of employees by days of the week. The company is closed on weekends.

The company has 100 employees and over 10 weeks (5000 employee appearances) they notice that there were 100 absences, of which 40 were on the days closest to a weekend (Mondays and Fridays.)

Let A = an employee is absent on a day which is a Monday or Friday
Let B = an employee is absent on a day which is a Tuesday, Wednesday or Thursday.
Let C = a day is a Monday or Friday

What is the event A U B?

What is P(A U B) ?

Why is A ∩ B = ∅ ?

What is P(A) ?

What is P(C) ?

What is P(A | C)?

Are A and C independent?.

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