C6. Let’s continue our analysis of offenders and victims of violent crime. In the following table, U.S. Department of Justice 2011 data for the sex of offenders and the sex of victims are reported.

1. Treating sex of offender as the independent variable, how many errors of prediction will be made if the independent variable is ignored?
2. How many fewer errors will be made if the independent variable is taken into account?
3. Combine your answers in

(a) and

(b) to calculate lambda. Discuss the relationship between these two variables.
4. Which lambda is stronger, the one for sex of offenders/victims or race of offenders/victims (Exercise 5)?

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Sex of Offender Sex of Victim Male Female Male 3,760 450 Female 1,590 140 Source: U.S. Department of Justice, Expanded Homicide Data, Table 6, 2011.