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Karma
Class:  MATH 2345  Introduction to Statistics with Application to Business 
Subject:  MATHEMATICS 
University:  Texas Tech University 
Term:  Spring 2010 
Descriptive statistics  collecting, summarizing, and describing data 
Inferential statistics  drawing conclusions and/or making decisions concerning a population based only on sample data 
summary table  indicates the frequency, amount, or percentage of items in a set of categories so that you can see differences between categories 
Bar charts and Pie charts are often used for  categorical data 
Pareto Chart  A Pareto chart, named after Vilfredo Pareto, is a type of chart which contains both bars and a line graph. Used to portray categorical data (nominal scale) Used to separate the Ã¢vital fewÃ¢ from the Ã¢trivial manyÃ¢ 
Ordered Array  a sequence of data, in rank order, from the smallest value to the largest value Shows range (minimum value to maximum value) May help identify outliers (unusual observations) 
StemandLeaf Display  A simple way to see how the data are distributed and where concentrations of data exist 
frequency distribution  a summary table in which the data are arranged into numerically ordered classes. 
Cross Tabulations  A cross tabulation (often abbreviated as cross tab) displays the joint distribution of two or more variables. 
crossclassification (or contingency) table  presents the results of two categorical variables. The joint responses are classified so that the categories of one variable are located in the rows and the categories of the other variable are located in the columns. 
Scatter plots  A scatter plot is a type of mathematical diagram using Cartesian coordinates to display values for two variables for a set of data. used to examine possible relationships between two numerical variables 
central tendency  the extent to which all the data values group around a typical or central value 
variation  the amount of dispersion, or scattering, of values 
shape  the pattern of the distribution of values from the lowest value to the highest value 
continuous random variable  variable that can assume any value on a continuum (can assume an uncountable number of values) 
Standardized Normal  Any normal distribution (with any mean and standard deviation combination) can be transformed into the standardized normal distribution (Z) 
Dependent variable  the variable we wish to predict or explain 
Independent variable  the variable used to predict or explain the dependent variable 
coefficient of determination  the portion of the total variation in the dependent variable that is explained by variation in the independent variable 
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Descriptive statistics  collecting, summarizing, and describing data  
Inferential statistics  drawing conclusions and/or making decisions concerning a population based only on sample data  
summary table  indicates the frequency, amount, or percentage of items in a set of categories so that you can see differences between categories  
Bar charts and Pie charts are often used for  categorical data  
Pareto Chart  A Pareto chart, named after Vilfredo Pareto, is a type of chart which contains both bars and a line graph. Used to portray categorical data (nominal scale) Used to separate the Ã¢vital fewÃ¢ from the Ã¢trivial manyÃ¢  
Ordered Array  a sequence of data, in rank order, from the smallest value to the largest value Shows range (minimum value to maximum value) May help identify outliers (unusual observations)  
StemandLeaf Display  A simple way to see how the data are distributed and where concentrations of data exist  
frequency distribution  a summary table in which the data are arranged into numerically ordered classes.  
Cross Tabulations  A cross tabulation (often abbreviated as cross tab) displays the joint distribution of two or more variables.  
crossclassification (or contingency) table  presents the results of two categorical variables. The joint responses are classified so that the categories of one variable are located in the rows and the categories of the other variable are located in the columns.  
Scatter plots  A scatter plot is a type of mathematical diagram using Cartesian coordinates to display values for two variables for a set of data. used to examine possible relationships between two numerical variables  
central tendency  the extent to which all the data values group around a typical or central value  
variation  the amount of dispersion, or scattering, of values  
shape  the pattern of the distribution of values from the lowest value to the highest value  
continuous random variable  variable that can assume any value on a continuum (can assume an uncountable number of values)  
Standardized Normal  Any normal distribution (with any mean and standard deviation combination) can be transformed into the standardized normal distribution (Z)  
Dependent variable  the variable we wish to predict or explain  
Independent variable  the variable used to predict or explain the dependent variable  
coefficient of determination  the portion of the total variation in the dependent variable that is explained by variation in the independent variable 
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