About This Chapter
1. Z Test & T Test: Similarities & Differences
A t-test is a statistical method used to see if two sets of data are significantly different. A z-test is a statistical test to help determine the probability that new data will be near the point for which a score was calculated. Learn about these two statistical calculations, their differences, and their similarities.
2. Finding Minima & Maxima: Problems & Explanation
One of the most important practical uses of higher mathematics is finding minima and maxima. This lesson will describe different ways to determine the maxima and minima of a function and give some real world examples.
3. Finding the Lower Quartile: Definition & Example
In this lesson, you will learn the definition of lower quartile and what it represents in a set of data. You will review a few examples and follow the steps of finding the lower quartile. Then you will take a brief quiz to test what you learned.
4. Interquartile Range: Definition, Formula & Example
This lesson offers a definition of interquartile range as well as a description of the concept. The formula is given along with examples. Users may then test their new knowledge with a short quiz after the lesson.
5. Interval Notation: Definition & Examples
This lesson defines interval notation and explains how to write sets in interval notation. It also explores the various types of intervals, including open and closed intervals.
6. T-Charts in Math: Examples & Problems
T-charts are great organizational tools to help solve equations with more than one variable. Whenever you have equations with unknowns, you can use a T-chart to organize and solve a problem.
7. Secondary Data Analysis: Definition & Examples
Businesses must gather and analyze information for many different reasons. In this lesson, you will learn about secondary data analysis and when businesses can use it.
8. Law of Averages: Definition & Formula
In this lesson, you will learn about the law of averages and how it compares to the law of large numbers. You will also learn the formula for the law of averages. Following this lesson will be a brief quiz to test your new knowledge.
9. Matched-Pairs Design: Definition, Advantages & Examples
In this lesson, you will learn the definition of a matched-pairs design. You'll also be given an example to clearly illustrate how a matched-pairs design works.
10. What is a Picture Graph? - Definition & Examples
We will explore the function of a picture graph and look at some examples. Also, in this lesson you will learn to create questions and organize, represent, and interpret data from a picture graph.
11. Markov Chain: Definition, Applications & Examples
In this lesson we explore the concept of a Markov chain, which is a way of using matrix methods to analyze a process that changes over time according to given probabilities. Applications and examples will be provided.
12. Creating a Correlation Matrix in Excel
A correlation matrix can be run in Excel and other statistical modeling programs. This lesson will teach you how to run a correlation matrix in Excel, and how to interpret the results.
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