Pt1420 Unit 1 Data Analysis Essay

1. For the following scores, find the mean, median, and the mode. Which would be the most appropriate measure for this data set?

Crime measurement and statistics for police departments are very important when it comes to money allotment, staffing needs or termination and it is also used to determine the effectiveness of new laws and programs. There are three tools used to measure major crime in the United States: Uniform Crime Reports, National Crime Victimization Survey and the National Incident Based Reporting System- which is currently being tested to replace the Uniform Crime Reports. Although there different tools used to measure crime, crime rates can be deceiving. Each different tool reports a different type of rate, crime rates, arrest

·  How were measures of central tendency used in the study? Did the study use the most appropriate measure of central tendency for the given data? Why or why not?

Then there is a system called the PICTS and it is used by allowing the participants to go through eighty different statements and choose whether they agree or disagree with that statement and based off of the results from the responses the experts are able to determine out of the up to thirteen different thought patterns that are associated with criminal behavior based off of the four point per question scale, being that the higher the score they higher the thoughts associated with criminal behavior is. The results are based off of a T score which are scores based on the normal responses to the questions for each genders and then for the inmates a percent of elevation is given to both men and women in each of the thirteen categories. The results are as follows for the percentage above normal for the 100 participants in the eight thinking style scales which will be the first number and the 22 women which will be the second. Mollification which is a 39 percent increase for men and 18 percent increase for women, cutoff which is a 69 percent increase for men and 36 percent increase for women, entitlement which is a 35 percent increase for men and 23 percent for women, power orientation is a 41 percent increase for men and 23 percent for women, sentimentality is the lowest at a 37 percent increase for men and 18 percent for women, super optimism is a 42 percent increase for men and 14 percent for women, cognitive indolence is a 61

4. Calculate the following measures of central tendency for the set of cube measurement data. Show your work or explain your procedure for each.

1. By hand, compute the mean, median, and mode for the following set of 40 reading scores:

Question 4: The mode is the most frequently occurring value in a set of data so here the mode is 178 so the answer is e.

Criminal Justice is a science that uses facts, experience, and opinions to develop standards that help shape the decision-making process. Legal empirical researchers are using statistical analysis to categorize crime data. Combining both data and legal analysis, this concept led to a new movement of a development of law. Statistics show there are 2.3 million incarcerated in correctional facilities in the United States. At the State and Federal prison systems, one in five prisoners is incarcerated for a drug offense (Peter Wagner). Maryland has more than 20,000 inmates, 58% were for nonviolent offenses, costing the state close to 1 billion dollars per year. On average one inmate costs the state over 37,000 dollars

Mean would be the most appropriate measure of central tendency to describe this data. This is because the mean is the average of all scores in the data set. If Dr. Williams were to graph the data into a bell shaped distribution, then the mean would be in the center where most of the scores are located. The mean is calculated using all information of the data set, and is the best score to use if you want to predict an individual score.

1. For the following scores, find the mean, median, and the mode. Which would be the most appropriate measure for this data set?

The first variable considered is Location, a categorical variable. The three subcategories are Urban, Suburban and Rural. The frequency distribution and pie chart are included. Measures of central tendency and descriptive statistics are not calculated due to the categorical nature of the variable.

Although crime has been around for ages, we only started collecting crime data around the 1930’s. Crime statistics show a lot about a country, state, county, etc. Crime can be linked to the environment, behavior of others, and personal experiences, it all depends on how the person deals with the hand they are dealt. Crime data is collected from three sources, which are uniform crime reports (UCR), national incident based reporting system (NIBRS), and national crime victimization survey (NCVS).

If we choose mean data analysis, or the median data analysis, the customer coming to the business will be 40 or over 40 years old. But if we go for the mode data analysis, the customer could be of any age from 10+ to 70+

While studying Criminology I have gained insight on different techniques used to determine which individuals commit the most crimes. There are three basic methods to measure criminal behavior. These include: Uniform Reporting of Crime, Self- Report and National Crime Victimization Survey. Uniform Reporting of Crime (URC) is a nationwide, cooperative statistical effort of more than 18,000 voluntarily individuals reporting data on crimes (“Federal Bureau of Investigation”1). Self-report surveys measure crime by distributing questionnaires to a sample of people, asking if they have committed any crimes during a period of time. National Crime Victimization Survey (NCVS) is a national source that samples about 90,000 households in order to uncover unreported crime and describes the relationship between the victims and the offender (“Bureau of Justice Statistics” 1).

5. The arithmetic mean is only measure of central tendency where the sum of the deviations of each value from the mean will always be zero