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A researcher is interested in the relationship between violent crime reporting and the homicide rate. Specifically, she thinks that when people don’t report violent crimes to police (e.g., are too scared, mistrust, etc.), it will lead to higher homicide rates because people will take the law into their own hands and engage in retaliatory violence. To examine this, she takes a random sample of 2,000 neighborhoods in large cities and, for each neighborhood, she records the percentage of violent crimes that are reported to the police and the homicide rate per 10,000 residents.

1. What is the independent variable?
A. 2,000 neighborhoods
B. Reporting a violent crime to police
C. Homicide rates
D. Unreported violent crime

2. What is the dependent variable?
A. 2,000 neighborhoods
B. Reporting a violent crime to police
C. Homicide rates
D. Unreported violent crime

3. What is the population?
A. 2,000 neighborhoods
B. Large cities
C. 2,000 neighborhoods in large cities
D. Cities

4. What is the sample?
A. 2,000 neighborhoods
B. Large cities
C. 2,000 neighborhoods in large cities
D. Cities

Answer :

Final answer:

In the presented scenario, the independent variable is the rate of violent crimes reported to the police, the dependent variable is the homicide rate, the population refers to all neighborhoods in large cities, and the sample is the 2,000 neighborhoods chosen by the researcher.

Explanation:

In the given research scenario, the independent variable is the percentage of violent crimes that are reported to the police (option b).

The dependent variable would be the homicide rates per 10,000 residents (option c). This is because the researcher is hypothesizing that the reporting rate of violent crimes affects the homicide rate.

The population would be the totality of neighborhoods in large cities (option c), as this is the entire group that the researcher is interested in studying.

Finally, the sample is the 2,000 neighborhoods selected by the researcher in large cities (option c). The sample is a part of the population that is being studied.

Learn more about Independent and Dependent Variables in Research Studies here:

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