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The Student Success Commons at York County Community College: Statistics (MAT 124)
Many statistical calculations call for these symbols, so to avoid feeling overwhelmed when faced with a formula, print out and keep this glossary handy!
This document explains the differences between permutations, combinations, and factorials. It includes a handy flowchart to help you determine which one to use when, as well as several examples.
In this online calculator you can enter your data set, choose whether the data is from the population or a sample, and calculate the coefficient of variation (CV). Note: this calculator produces several statistical values. The CV is toward the bottom of the computed results.
Enter a probability distribution table and this calculator will find the mean, standard deviation and variance. The calculator will generate a step by step explanation along with the graphic representation of the data sets and regression line.
This expected value calculator helps you to quickly and easily calculate the expected value (or mean) of a discrete random variable X. Enter all known values of X and P(X) into the form below and click the "Calculate" button to calculate the expected value.
This Poisson distribution calculator can help you find the probability of a specific number of events taking place in a fixed time interval and/or space if these events take place with a known average rate.
Use this calculator to compute the confidence interval or margin of error, assuming the sample mean most likely follows a normal distribution. Use the Standard Deviation Calculator if you have raw data only.
Enter two data sets and this calculator will find the equation of the regression line and correlation coefficient. The calculator will generate a step by step explanation along with the graphic representation of the data sets and regression line.
A brief overview of statistics and common vocabulary used.
Note: The narrator in the Simple Learning Pro videos uses the term "categorical data" but in your course you'll see the term "qualitative data".
Learn about the Placebo Effect, Control Groups, and the Double-Blind Experiment
Quickly learn about bar charts, pie charts, histograms, stem-and-leaf plots, and learn about which type of graphical tool is appropriate for describing quantitative variables, and qualitative variables.
Note 1: The narrator in the Simple Learning Pro videos uses the term "categorical data" but in your course you'll see the term "qualitative data".
Note 2: Please skip time index 1:47 to 2:43. This video does not cover class boundaries (learned in chapter 2.1) so please skip this small section of the video to avoid confusion.
This video quickly demonstrates how to find and compare the mean, the median, and the mode. You'll also cover how the shape or skew of a distribution affects each of them.
Note: Your course will not cover Exhaustive Events so you can stop watching this video at time index 2:09
Student Success Commons at York County Community College