AP Statistics: Introduction to Variables
Sep 28, 2022
This video describes the use of variables in AP Statistics. It answers three questions: What is a variable? What is the difference between categorical and quantitative variables? And what is the difference between discrete and continuous variables? View
AP Statistics: Populations and Samples
Sep 29, 2022
AP Statistics is all about the study of data sets. This lesson describes two important types of data sets - populations and samples. Along the way, we'll introduce simple random sampling, the main method used in AP Statistics to select samples. View writ
AP Statistics: Mean and Median (measures of central tendency)
Oct 1, 2022
The mean and the median are summary measures used in AP Statistics to describe the most "typical" value in a set of values. This video explains how to compute each measure and when to use each measure. (Statisticians sometimes refer to the mean and median
AP Statistics: Measures of Variability
Oct 1, 2022
Statisticians use summary measures to describe the amount of variability or spread in a data set. For AP Statistics, students are expected to know about four measures of variability: the range, the interquartile range (IQR), variance, and standard deviati
AP Statistics: Percentiles, Quartiles, z-Scores (measures of position)
Oct 6, 2022
Statisticians often talk about the position of a value, relative to other values in a set of data. The most common measures of position are percentiles, quartiles, and standard scores (aka, z-scores). This video shows how to compute each measure of positi
AP Statistics: Patterns in Data
Oct 6, 2022
Graphic displays are useful for seeing patterns in data. This video lesson shows how properties of data sets - center, spread, shape, clusters, gaps, and outliers - are revealed in charts and graphs. Features clear, easy-to-understand examples. View writ
AP Statistics: What is a dotplot?
Oct 6, 2022
Dotplots are charts that compare frequency counts within groups. Using easy-to-understand examples, this video lesson explains (1) how to read a dotplot and (2) how to construct a dotplot. View written lesson here: https://stattrek.com/statistics/charts/
AP Statistics: What are bar charts and histograms?
Oct 6, 2022
This video lesson tells you everything you need to know about bar charts and histograms - what they are, when to use them, how they differ, how to construct them, and how to read them. Key points are reinforced with easy-to-understand examples. View writ
AP Statistics: What is a stemplot?
Oct 6, 2022
This video lesson tells you everything you need to know about stemplots - what they are, when to use them, how to construct them, and how to read them. Key points are reinforced with easy-to-understand examples. View written lesson here: https://stattrek
AP Statistics: Binomial Probability Distribution
Sep 30, 2022
This video tells you everything you need to know about the binomial probability distribution in AP Statistics. By the end of the video, you will understand binomial experiments, you will recognize binomial random variables, you will know how to compute bi
AP Statistics: Cumulative Frequency Plots
Oct 11, 2022
A cumulative frequency plot is a way to display cumulative information graphically. It shows the number, percentage, or proportion of observations that are less than or equal to particular values. This video tells you everything you need to know about cum
AP Statistics: What is a scatterplot?
Oct 11, 2022
A scatterplot is a graphic tool used to display the relationship between two quantitative variables. This video lesson tells you everything you need to know about scatterplots- what they are, when to use them, how to construct them, and how to read them.
AP Statistics: How to Compare Data Sets
Oct 11, 2022
Common graphical displays (e.g., dotplots, boxplots, stemplots, bar charts) can be effective tools for comparing data from two or more data sets. This video shows how to use various graphs to compare data sets in terms of center, spread, shape, and unusua