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Unformatted text preview: Variable is any characteristic that can be assigned a number or category. pg. 13 Numerical Data Data that can be represented by numbers. Ex: Age, distance, amounts, etc. p.13 Categorical Data Data that would be represented in terms of categories. Ex: Color, food, types of things, etc. p.13 Measurement (quantitative) a variable that takes on numeric values p. 13 Count A third type of variable that could be thought of as a subset of the measurement variable. The values would be numeric, but specifically whole numbers . p.13 Verbs of Statistics gathering, organizing, analyzing and interpreting data collected. Nouns of Statistics mean, median, mode, range and outlier of the data collected is considered to be the ''nouns'' of statistics. Process of Statistical Investigation techniques and tools that aid in the collection, organization, summarization, and interpretation of a collection of information referred to as data. p. 1 Binary Categorical Data There are only two possible response categories (Ex. yes or no, male or female). This data is usually displayed using a backtoback bar graph. p.16 Stacked Bar Graph shows data in a relative or "parttowhole" perspective where each individual segment represents a particular part and all segments combined make up the whole. pg 18 Read Question  requires the respondent to read information from the table to determine a solution. Can be used to focus student's attention on the structure and organization of the data presented in the summarizing display. (read data right off of graph). pg 32 Derive Question  some type of computation involving information read from the table must be performed in order to determine a solution. requires students to use mathematical concepts and skills to "read between the data". pg 33 Interpret Question  requires an extension, prediction or inference to "read beyond the data". pg 33 Variability the spread of the data; includes the range of the data, any groups or clusters of data, any gaps in the data, a center, or a most common value p. 4243 Dot Plot (line plot) is a simple way to visually display the distribution of a small set of measurment data. pg 41 Grouped Frequency Distribution is an alternative method for organizing large data sets by condensing the data using a grouping strategy. In this method, each data value is assigned to an interval or category and then presented in a condensed form. pg 55 Histogram  used to organize large numerical data sets. A graphical display of the information found in a grouped frequency table. pp. 55 StemandLeaf Plot  visual display of the distributon of the elements of a set of measurement data pp. 43 (organize numerical data) Conditional information, that is, information about one variable knowing or given certain conditions. pg....
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This note was uploaded on 03/10/2010 for the course MATH 2650 taught by Professor Browning during the Spring '10 term at Western Michigan.
 Spring '10
 Browning
 BoxAndWhisker Plots

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