Find the probability that when 10 people making $25,000--$50,000 are randomly selected, exactly 4 of them are audited. ___________________ Find the probability that at least four are audited. _________________ Based on the preceding results, what can you conclude about the Hemingway customers? Are they just unlucky, or are they being targeted for audits?
Find the probability that when 10 people making $25,000--$50,000 are randomly selected, exactly 4 of them are audited. ___________________ Find the probability that at least four are audited. _________________ Based on the preceding results, what can you conclude about the Hemingway customers? Are they just unlucky, or are they being targeted for audits?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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- IRS Audits: The Hemingway Financial Company prepares tax returns for individuals. (Motto: “We also write great fiction.”) According to the Internal Revenue Service, individuals making $25,000--$50,000 are audited at a rate of 1%. The Hemingway Company prepares tax returns for ten individuals in that tax bracket, and four of them are audited.
- Find the
probability that when 10 people making $25,000--$50,000 are randomly selected, exactly 4 of them are audited. ___________________ - Find the probability that at least four are audited. _________________
- Based on the preceding results, what can you conclude about the Hemingway customers? Are they just unlucky, or are they being targeted for audits?
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