Imagine that the incidence of gun violence is compared in two cities, one with relaxed gun laws (A), the other with strict gun laws (B). In the city with relaxed gun laws, there were 50 shootings in a population of 100,000 and in the other city, 10 shootings in a population of 100,000. Show contingency table and MedCalc results. What is the relative risk of gun violence in the city with relaxed gun laws (A)? What is the relative risk of gun violence in the city with strict gun laws (B)? What questions need to be asked before concluding that there is an association between shootings and gun laws?

Imagine that the incidence of gun violence is compared in two cities, one with relaxed gun laws (A), the other with strict gun laws (B). In the city with relaxed gun laws, there were 50 shootings in a population of 100,000 and in the other city, 10 shootings in a population of 100,000. Show contingency table and MedCalc results. What is the relative risk of gun violence in the city with relaxed gun laws (A)? What is the relative risk of gun violence in the city with strict gun laws (B)? What questions need to be asked before concluding that there is an association between shootings and gun laws?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 26PPS

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Question

Imagine that the incidence of gun violence is compared in two cities, one with
relaxed gun laws (A), the other with strict gun laws (B). In the city with relaxed
gun laws, there were 50 shootings in a population of 100,000 and in the other city,
10 shootings in a population of 100,000. Show contingency table and MedCalc
results.
What is the relative risk of gun violence in the city with relaxed gun laws (A)?
What is the relative risk of gun violence in the city with strict gun laws (B)?
What questions need to be asked before concluding that there is an
association between shootings and gun laws?

Definition Definition Visual representation of the relationship between two or more categorical variables. A contingency table is a categorical version of the scatterplot, which is used to visualize the linear relationship between two variables.

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