We want to examine the relationship between sex 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.

	Sex of Offender	Sex of Offender
Sex of Victim	Male	Female
Male	3760	450
Female	1590	140

a. Treating sex of offender as the independent variable, how many errors of predictions will be made if the independent variable is ignored? ____

b. How many fewer errors will be made if the independent variable is taken into account? Answer: Considering the sex of the offender to predict the sex of the victim, we would make ____ errors. For male offenders, we would make ____ errors and for the female offenders, we would make _____ errors.

c. Calculate lambda. Our calculated lambda is _____.Information about the sex of the offender reduces our error in predicting the sex of the victim by _____ %.