Study Guide- Statistics Sciences
Study guide by RKT
SU-20_PSY3303-SA01A Statistics for the Behavioral Sciences - E. Kroll, at Rochester University I have compiled this webpage for purposes of trying to comprehend the amazing concepts of Statistics and all it entails.
So instead of throwing the computer out the window and screaming a plethora of words that are not so politically correct to say out loud in a Google Meet Classroom...
(Not that I forgot my microphone was not on mute and it may or may not have happened that everyone heard me go off in a fit of frustration...)
I have decided to create this study page to help myself and any other frustrated student ready to jump off a !@#$%^& Bridge.
I have compiled links, webpages, Professor Krolls' amazing notes, and anything else I could get my hands to help my brain understand.
RKT
Fundamental Statistics for the Behavioral Sciences -------David C Howell
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CHAPTER 1- INTRODUCTION TO STATISTICS
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Categorical data (frequency data, count data)
Categorical data (frequency data, count data)
Data representing counts or number of observations in each category.
Measurement data (quantitative data)
Measurement data (quantitative data)
Data obtained by measuring objects or events.
Parameters
Parameters
Numerical values summarizing population data.
Population
Population
Complete set of events in which you are interested.
Random Sample
Random Sample
A sample in which each member of the population has an equal chance of inclusion.
Sample
Sample
Set of actual observations; subset of a population.
Statistics
Statistics
Numerical values summarizing sample data.
CHAPTER 2- BASIC CONCEPTS
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CHAPTER 3—DISPLAYING DATA IMPORTANT TERMS
CHAPTER 3—DISPLAYING DATA IMPORTANT TERMS
CHAPTER 3—DISPLAYING DATA
IMPORTANT TERMS
Frequency distribution A distribution in which the values of the dependent variable are tabled or plotted against their frequency of occurrence. Real lower limit The point halfway between the bottom of one interval and the top of the one below it. Real upper limit The point halfway between the top of one interval and the bottom of the one above it. Midpoint Center of the interval; average of the upper and lower limits. Stem–and–leaf display Graphical display presenting original data arranged into a histogram. Leading digits (most significant digits) Leftmost digits of a number. Stem Vertical axis of display containing the leading digits. Trailing digits (less significant digits) Digits to the right of the leading digits. Leaves Horizontal axis of display containing the trailing digits. Histogram Graph in which a rectangle is used to represent frequencies of observations within each interval. Bar graph A graph in which the frequency of occurrence of different values of X is represented by the height of a bar. Line graph A graph in which the Y values corresponding to different values of X are connected by a line. Symmetric Having the same shape on both sides of the center. Modality The number of meaningful peaks in a frequency distribution of the data. Unimodal A distribution having one distinct peak. Bimodal A distribution having two distinct peaks. Skewness A measure of the degree to which a distribution is asymmetrical. Negative skewed A distribution that trails off to the left. Positively skewed A distribution that trails off to the right.