Populations & Sampling
Learn how populations, samples, variables, observations, and sampling methods fit together.
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Introductory college statistics
Pass Statistics Without the Confusion
Short, affordable lessons explain the statistics taught in college courses. Learn with plain-English explanations, practical examples, and practice questions that prepare you for quizzes and exams.
Learn in a Clear Order
Begin with the foundations. Then build your understanding one manageable lesson at a time.
Types of Variables
Understand qualitative and quantitative variables, along with nominal, ordinal, interval, and ratio data.
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Types & Categories of Data
Review the data types commonly tested in introductory statistics courses.
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Types of Graphs & Data Displays
Match bar charts, pie charts, histograms, and other displays to the correct type of data.
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Finally Understand Mean, Median & Mode
Learn the three measures of center and when each one gives the clearest description of the numbers.
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Standard Deviation, Variance & Range
Understand how statistics describe the distance and spread among the numbers in a data set.
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Learn What You Need for Class
Clear explanations
Learn the meaning before facing the formulas.
Practical examples
See how each idea works with numbers you can follow.
Practice with answers
Prepare for homework, college quizzes, and exams.
For Students Who Feel Lost in Stats 101
Pass The Stats is designed for students taking introductory statistics in Nursing, Psychology, Business, Education, and other college programs.
Created by Barb Berry
MS in Applied Statistics
MA in Experimental Psychology
Former statistics instructor at Kansas State University