CCJS611 Final Exam --Yao Yang 113947919

1 N
（ xi ） ， or i 1
2
N
xi x
2
n 1
18 . 546
Data Selection:PERCENT MALES RESIDING ON CAMPUS
Statistics PERCENT MALES RESIDING ON CAMPUS N Valid Missing Mean Median Mode Std. Deviation 150 0 26.65 24.00 0 19.799
-2-
Mean
( Cn * fn ) fn
43.57
1 cf n2 Median L f
w 40
i
,
according to the data statistics. Mode 50，
Standard Deviation :
Description: From the table above we can observe the “Mean, Median, and Mode” are 26.65, 24, and 0 respectively. From the graph we could find that the mean and median are very close to each other, the both of them can be considered as the representative data of central tendency Based on the Formula:
Statistics PERCENT RECEIVING FINANCIAL AID N Valid Missing Mean Median Mode Std. Deviation Variance 150 0 43.57 40.00 50 18.546 343.964
Description: From the table above we can observe the “Mean, Median, and Mode” are 43.57, 40, and 50 respectively. From the graph we could find that the mean of “Percent Receiving Financial Aid” can be a certain representative among the other central tendencies. Based on the Formula:
Scope of Study: This data collection provides information on crime on 150 selected college campuses and cities in the United States in the period 1978-1979. The Summary:collection covers violent crime and property crime on campus and in cities, and the number and sex of police officers assigned to campus duty and in cities. Aggregate socioeconomic information for campuses includes the amount of financial aid received, while information for cities includes the percentage of residents who were unemployed or below poverty level, female labor force participation, and household activity ratio. Campus demographic variables itemize the percentage of males and females residing on campus, percentage of Blacks attending school,number of foreign students, student-faculty ratio, total number of students on campus, students per acre, and students per 1,000 city residents. Aggregate demographic variables for cities are provided on total population, percentage of residents aged 15-19 or 20-24 years old, total number of households, number of single mother-headed households, and percentage of Blacks in the city. Question No.1&2 1)Means, Median, Modes and Standard Deviations for 3 or more variables in the data. 2)Appropriate Graphs for the Distributions of 3 or more variables in the data.
FINAL EXAM
CCJS611 Professor: Drang UID:113947919
-1-
Statistic Analysis about Crime on Campus, 1978-1979:A Survey of 150 College Campuses and Cities(Questions:1-3&7) Statistic Analysis about Drug Offender Treatment in Local Corrections in California and New York 1991-1993(Q:4-6)