Researchers were interested in studying the relationship between living location (Manhattan vs. other boroughs of NYC) and anxiety. Researchers decided to randomly select 50 residents from Manhattan and 40 residents from the other four boroughs. All were free from anxiety disorders at the start of the study. They then followed the participants for three years to determine how many in each group developed an anxiety disorder. Among residents of Manhattan, 18 out of 50 developed an anxiety disorder. Among residents of the other four boroughs, 12 out of 40 developed an anxiety disorder. Question : The risk of developing an anxiety disorder for those living in Manhattan was _______ times the risk of developing an anxiety disorder for those living in the other boroughs.

Researchers were interested in studying the relationship between living location (Manhattan vs. other boroughs of NYC) and anxiety. Researchers decided to randomly select 50 residents from Manhattan and 40 residents from the other four boroughs. All were free from anxiety disorders at the start of the study. They then followed the participants for three years to determine how many in each group developed an anxiety disorder. Among residents of Manhattan, 18 out of 50 developed an anxiety disorder. Among residents of the other four boroughs, 12 out of 40 developed an anxiety disorder. Question : The risk of developing an anxiety disorder for those living in Manhattan was _______ times the risk of developing an anxiety disorder for those living in the other boroughs.

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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