EXAMPLE 6:Researchers surveyed recent graduates of two differentuniversities about their annual incomes. The following two-waytable displays data for the 300 graduates who responded to thesurvey:AnnualUniversityUniversity TOTALIncome (USD) AВUnder 20, 00036246020, 000 to1095616539, 99940, 000 and354075overТОTAL180120300 QUESTION 6:Are the events "income is 40,000 USD and over" and"attended University B" independent?What is the probability that a randomlyselected graduate earns 40,000 USD and over?b. What is the probability that a randomlyа.selected graduate earns 40,000 USD and overgiven they are from University B?

Two events are said to be independent if P(A and B) = P(A).P(B)

Answered: Are the events "income is 40,000 USD…

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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Are the events "income is 40,000 USD and over" and "attended University B" independent? a. What is the probability that a randomly selected graduate earns 40, 000 USD and over? b. What is the probability that a randomly selected graduate earns 40,000 USD and over given they are from University B?