Statistics Directed Investigation Essay

Submitted By troutbum
Words: 1686
Pages: 7
Open Document
2015 Year 11 Mathematical Applications
Directed Investigation
Statistics

Lani Cheetham
DSECK
Contents page
Introduction pg. 3 & 4

Mathematical Investigation pg. 4-11

Frequency tally (Fitness) pg. 5

Frequency tally (social Network) pg. 6

Mean, Mode & Median (Fitness) pg. 7

Mean, mode and median (social network) pg. 8

Back to back ordered Stem Leaf Plot pg. 9

Box & Whisper Plot (both sets) pg. 10

Histogram (both sets) pg. 11

Conclusion pg. 12

Appendix 1 pg. 13

Introduction:
The purpose of this directed investigation was to show the understanding and knowledge of statistics. This specific task demonstrates the skill learnt in regards to gathering, sorting and placing information into the different aspects of Statistics. The directed investigation focuses primarily on the topic statistics which includes mathematically finding the mean, mode, and median, creating a stem and leaf plot as well as a box plot on the survey that was put together on a topic of choice. All of these are presented in the following investigation. The directed investigation was divided into around five parts.
The investigation was conducted by first putting together a survey of choice and sending out to a selected group. The survey was sent to year 9-11 Gleeson students. The survey chosen was on Fitness. It consisted of four questions. Questions one and two were multiple choice were the participants in the survey choice what suited them. Question one was what year level are you in? And question two was what gender are you? Question 3 and 4 were question that involved writing an answer. Question 3 was ‘How many hours of fitness do you weekly? And question 4 was how many hours a week do you spend on social networking sites, watching television and listening to music.

It is ideal to get between 30 to 50 useful responses to your survey to be able to continue. After collecting all information from the surveys the next step is to go through and mathematically collect the mean, mode and median from the collected information. The mean is found by adding all values together and dividing them by the amount of values. This is done twice in this directed investigation to find one for both sets of data. The mode is the most frequent occurring number/s in the set of data. The median is found by using the equation (n+1) ÷2, which is taking the amount of values then adding one and dividing that number by two. This will give the number of the set of data that your median is . The next step is to use the mean, mode and median to create an ordered stem and leaf plot, using a stem and leaf plot you are able to find the mean mode and median easier and faster. This step is then followed by a box plot containing the collated information. The use of technology, such as a Casio scientific calculator and Microsoft word & Microsoft Excel was implemented to assist in the calculation of this investigation. Survey Monkey was used to help create the survey template and the Gleeson College email was useful in helping to easily send out the survey to the selected group. Findings were presented electronically with the use of Microsoft word.

Mathematical Investigation
Firstly it involved finding a question to base the survey on. This directed investigation was based around the hours of fitness partaken by 75 students between the years of 9-11 in comparison to the amount of time that the same 75 students spent on social networking sites. The survey was sent out and responses were returned.

The information was then summarised using two-frequency tally’s. One
Show More

Related Documents: Statistics Directed Investigation Essay

Essay about Hate Crimes

becoming a routine category. The people for first coming up with the word “hate crime” came from a bill that was put together by a few House of Representatives. Representative John Conyers, Barbara Kennelly and Mario Biaggi titled the bill, “Hate Crime Statistics Act,” which was put together to enforce the Department of Justice to collect and publish all crimes motivated by racial, religious or ethnic prejudice. Ever since the term came out, it was started to appear everywhere. After 1985, newspapers and…

Words 2017 - Pages 9

Criminal Justice Essay

proving oneself”. During his lifetime, Augustus had bailed out more than 1,800 offenders, though he didn’t receive much recognition of his work. The idea of investigating offenders’ situations before sentencing resulted in PSI, or presentence investigation. It wasn’t until 1901 New York passes the first statute allowing the use of probation for adult felons and by 1907; the United States listed 795 juvenile and adult probation officers. Since 1975, the number of offenders on probation has increased…

Words 736 - Pages 3

What Is The Lost Art Of Discipline

‘art’ insinuating it is something of high value and skill. Thus, this line of questioning is preferred throughout the article as the author’s preoccupation with correlating badly behaved students with academic results is reinforced with research statistics and statements. His claim that ‘the problem with badly behaved students and disruptive classrooms across Australian schools is not new’ (Donnelly, 2013) is supported through the use of OECD statements and other studies. The results are used…

Words 1244 - Pages 5

Argumentative Essay: The Gun Control Debate

has been an issue that has been vehemently argued on both sides of the argument, those supporting gun control and those supporting gun rights. Which is why this is still an intriguing topic in today’s society. Why is that? According to some key statistics, it is noted that in this nation where nearly half of all US households own at least one gun, nearly 30,000 people die from a gunshot each year (Dahl). This alone has made it no secret why gun control is an important issue. The effects of gun control…

Words 794 - Pages 4

How Authorities Deal With Hate Crimes Essay

A History of How Authorities deal with hate crime Name: Institution: A History of How Authorities Deal with Hate Crime Introduction Hate crimes are a source of concern in most parts of the world today, including the U.S. The interest in hate crimes however is not very clear, since the actual dates these have been declared as crimes is not very clear. The following study seeks to establish the actual meaning of the term hate crimes, as well as the history behind the prosecution of hate…

Words 1132 - Pages 5

Social Policy Essay

Sociology is the scientific study of human social behavior and its origins, development, organizations, and institutions.[1] It is a social science that uses various methods of empirical investigation[2] and critical analysis[3] to develop a body of knowledge about human social actions, social structure and functions. A goal for many sociologists is to conduct research which may be applied directly to social policy and welfare, while others focus primarily on refining the theoretical understanding…

Words 1238 - Pages 5

Essay On Racial Profiling

An Upshot of Racial Profiling: The Ramifications of 9/11 On September 11, 2001, four U.S. airline planes were hijacked in the United States and used in suicidal terrorist attacks in order to strike fear in the American population. The coordinated attacks killed 3,000 people at New York City’s Twin Towers as well as the Washington metropolitan area. The hijackers were soon identified as members of the Islamic Terrorist group Al-Qaeda. Once the government released the identities of the hijackers…

Words 2135 - Pages 9

Social networking: our future Essay

Diaz­Bejarano 1 April Diaz­Bejarano dos Santos English 4P, Period 2 30 May 2014 Social Networking: Our Future Abstract: The internet has become interesting essential to our society. Social networking has pervaded our everyday lives; we interact and are influenced by many different forms of networking. Many in which affect how we get and share the data we have just learned. The researcher wants to let the others know that information on networks can be very useful to us on a daily basis…

Words 2703 - Pages 11

Death Penalty Research Paper

Did you know the 140 people have been released from death row and some were nearly minutes away from execution? In the past few years it has come to light that four men have been wrongfully executed. This statistic is just too high when we are talking a matter of life and death. The death penalty can be considered a lethal lottery in today’s society that really comes down to the amount of money someone can pay lawyer to keep them off of death row. Many of the current death row inmates were represented…

Words 1551 - Pages 7

Ban The Box Campaign Analysis

increase of incarceration. Since 2002, the United States has had highest incarceration rate in the world. Over the past thirty years the incarceration rate over the past thirty years has increased 500 percent. According to the Bureau of Justice Statistics the natural rate of incarceration for countries outside the United States are 100 prisoners per 100,000 residents. The United States is 500 prisoners per 100,000 residents. With this incarceration increase problems like overcrowding of prisons and…

Words 1928 - Pages 8