practice 4 for cj stat

CJ 317 Criminal Justice Statistics

Chapter 4 Practice

Work must be submitted as a Word or PDF document.  To show work, take a clear photo of your work, copy and paste it into the Word document prior to submission.   Any other submission will not be graded. 

Given the following raw data (34 points):

1 5 9

3 1 5

7 4 5

2 6 6

1-34. Construct a frequency distribution include the cumulative frequency for each score value, and the cumulative percentage of each score value. Calculate the variance and the standard deviation. Show work for variance and standard deviation.

The incoming cohort of juveniles in a new diversion program consists of 80 males and 120 females. Of this cohort, 140 graduate early (3 points). Show work for #35-37.

35. What is the proportion of male participation in the program?

36. What is the early release rate?

37. If the early release rate of the previous cohort was 60%, what is the early release rate of change?