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- https://stats.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Ikeda)/04%3A__SetsThe material in this chapter is from Math In Society by David Lippman.
- https://stats.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Ikeda)/07%3A_StatisticsStatistics are often presented in an effort to add credibility to an argument or advice. You can see this by paying attention to television advertisements. Many of the numbers thrown about in this way...Statistics are often presented in an effort to add credibility to an argument or advice. You can see this by paying attention to television advertisements. Many of the numbers thrown about in this way do not represent careful statistical analysis. They can be misleading, and push you into decisions that you might find cause to regret. These chapters will help you learn statistical essentials. It will make you into an intelligent consumer of statistical claims.
- https://stats.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Ikeda)/08%3A_Describing_Data/8.02%3A_Presenting_Quantitative_Data_GraphicallyQuantitative data can be summarized by frequency tables, and are commonly displayed as a histogram, frequency polygon or stem plot.
- https://stats.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Ikeda)/07%3A_Statistics/7.06%3A_ExercisesIdentify the most relevant source of bias in this situation: A study seeks to investigate whether a new pain medication is safe to market to the public. Find a newspaper or magazine article, or the on...Identify the most relevant source of bias in this situation: A study seeks to investigate whether a new pain medication is safe to market to the public. Find a newspaper or magazine article, or the online equivalent, describing the results of a recent study (the results of a poll are not sufficient). Give a summary of the study’s findings, then analyze whether the article provided enough information to determine the validity of the conclusions.
- https://stats.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Ikeda)/08%3A_Describing_Data/8.06%3A_Box_PlotsIn addition to the mean and median, which are measures of the "typical" or "middle" value, we also need a measure of how "spread out" or varied each data set is. There are several ways to measure thi...In addition to the mean and median, which are measures of the "typical" or "middle" value, we also need a measure of how "spread out" or varied each data set is. There are several ways to measure this "spread" of the data.
- https://stats.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Ikeda)/07%3A_Statistics/7.04%3A_ExperimentsSo far, we have primarily discussed observational studies – studies in which conclusions would be drawn from observations of a sample or the population. In contrast, it is common to use experiments wh...So far, we have primarily discussed observational studies – studies in which conclusions would be drawn from observations of a sample or the population. In contrast, it is common to use experiments when exploring how subjects react to an outside influence. In an experiment, some kind of treatment is applied to the subjects and the results are measured and recorded.
- https://stats.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Ikeda)/07%3A_Statistics/7.01%3A_Basic_Concepts_of_StatisticsBefore we begin gathering and analyzing data we need to characterize the population we are studying.
- https://stats.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Ikeda)/08%3A_Describing_Data/8.04%3A_Measures_of_Central_TendencyIt is often desirable to use a few numbers to summarize a distribution. One important aspect of a distribution is where its center is located. Numbers that describe a distribution's center are called ...It is often desirable to use a few numbers to summarize a distribution. One important aspect of a distribution is where its center is located. Numbers that describe a distribution's center are called measures of central tendency.
- https://stats.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Ikeda)/08%3A_Describing_DataOnce we have collected data from surveys or experiments, we need to summarize and present the data in a way that will be meaningful to the reader. We will begin with graphical presentations of data th...Once we have collected data from surveys or experiments, we need to summarize and present the data in a way that will be meaningful to the reader. We will begin with graphical presentations of data then explore numerical summaries of data.
- https://stats.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Ikeda)/08%3A_Describing_Data/8.05%3A_Measures_of_Variation_and_LocationIn addition to the mean and median, which are measures of the "typical" or "middle" value, we also need a measure of how "spread out" or varied each data set is. There are several ways to measure thi...In addition to the mean and median, which are measures of the "typical" or "middle" value, we also need a measure of how "spread out" or varied each data set is. There are several ways to measure this "spread" of the data.
- https://stats.libretexts.org/Courses/Fullerton_College/Math_100%3A_Liberal_Arts_Math_(Ikeda)/08%3A_Describing_Data/8.09%3A_Exercises\(\begin{array}{|l|l|l|l|l|l|l|l|l|l|l|l|} The bar graph to the right shows the number of adults who indicated each number of children. Referring to the boxplot above, what percentage of actuaries mak...\(\begin{array}{|l|l|l|l|l|l|l|l|l|l|l|l|} The bar graph to the right shows the number of adults who indicated each number of children. Referring to the boxplot above, what percentage of actuaries makes more than the median salary of a CPA? Of interest is the average length of time in months patients live once starting the treatment. A sample of 30 distance scores measured in yards has a mean of 7, a variance of 16, and a standard deviation of 4.
