Correlation Instructions: Use the following data to answer the questions. Let's say you are a criminology student and you have collected data on the number of police officers on duty and the crime rate in different cities. You want to determine if there is a correlation between the number of police officers on duty and the crime rate. Police officers on duty (n) City A B C D E 150 180 130 160 200 Crime Rate (per 1,000 inhabitants) 25.5 22.3 27.8 20.1 18.5 Questions: 1. Calculate the Pearson correlation coefficient (r) between the number of police officers on duty and the crime rate. Shows all calculations. 2. Interpret the value of r obtained in question 1 in terms of the strength and direction of the correlation. 3. Explain your conclusion.
Correlation Instructions: Use the following data to answer the questions. Let's say you are a criminology student and you have collected data on the number of police officers on duty and the crime rate in different cities. You want to determine if there is a correlation between the number of police officers on duty and the crime rate. Police officers on duty (n) City A B C D E 150 180 130 160 200 Crime Rate (per 1,000 inhabitants) 25.5 22.3 27.8 20.1 18.5 Questions: 1. Calculate the Pearson correlation coefficient (r) between the number of police officers on duty and the crime rate. Shows all calculations. 2. Interpret the value of r obtained in question 1 in terms of the strength and direction of the correlation. 3. Explain your conclusion.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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Correlation
Instructions: Use the following data to answer the questions. Let's say you are a criminology
student and you have collected data on the number of police officers on duty and the crime
rate in different cities. You want to determine if there is a correlation between the number of
police officers on duty and the crime rate.
Police officers on duty (n)
City
A
B
C
DE
E
150
180
130
160
200
Crime Rate (per 1,000 inhabitants)
25.5
22.3
27.8
20.1
18.5
Questions:
1. Calculate the Pearson correlation coefficient (r) between the number of police officers on
duty and the crime rate. Shows all calculations.
2. Interpret the value of r obtained in question 1 in terms of the strength and direction of
the correlation.
3. Explain your conclusion.
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