Graphs
Bivariate Data
Least Square Regrssion Line
Categorical data: Frequency tables
Miscellaneous
100
Subtract Q1 from Q3
How do you find inner quartile range?
100
Data on two different variables collected from each item in a study.
What is bivariate data?
100
The dependant variable or response variable
What is the y variable?
100
A table of data classified by r categories of classification criterion 1 and c categories of criterion 2
What are contingency tables?
100
Point the divides the measurement in half
What is the median?
200
point which falls more than 1.5 times the interquartile range above the third quartile or below the first quartile.
What is an outlier?
200
Scatterplots and Correlation coeffecient
What are two commonly used meausures to summarize the relation between two variables?
200
The independant variable or explanatory variable.
What is the x variable?
200
The frequency of two categories , one from each of the two classification criteria occur together.
What is a joint frequency?
200
Represents a single group or class (hint hint has to do with graphs)
What do the bars in a histogram represent?
300
Points fall more on the right side of a graph.
What is right skewed?
300
Used to describe the nature, degree, and direction of the relation between two variables.
What is a scatterplot used for?
300
Line that minimizes the error sum of squares of the residual. Also known as the line of best fit.
What is the least squares regression line?
300
Frequency with which each category occurs.
What is marginal frequency?
300
Frequency for any group plus the frequencies of all smaller groups of smaller observation.
What is a cumulative frequency chart?
400
Plot that can only be used to compare two data sets
What is a back to back stemplot?
400
Numerical measures used to judge the linear relation between two variables.
What is a correlation coeffecient?
400
Measures the percent of variation in Y-values explained by the linear relation between x and y variables?
What is the coeffecient of determination?
400
Frequency of one category given that the other category has occured.
What is conditional relative frequency?
400
Greek symbol sigma
What is used to denote a population standard deviation?
500
Multiple frequency polygrams A graph showing the frequency of different values of a random variable
What are multiple frequency polygrams?
500
Points scattered without any apparent pattern
When is a scatterplot considered to have no relationship?
500
Denote for the coefficient of determination?
What is r squared?
500
Used to measure the degree of relation between two categorical variables.
What is association used for?
500
Gives the distance between the measurement and the mean in terms of the number of standard deviations.
What is z-score?
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