Curated OER
How Do You Use the Fundamental Counting Principle to Count the Number of Outcomes in a Sample Space?
Sometimes all you need is an image to help solve a word problem. This tutorial shows how drawing picture can help you determine a correct number of possibilities with given data. You can also use the FCP or fundamental counting principle...
Curated OER
How Do You Find the Mean of a Data Set?
There are eight decimals numbers in this data set. Find the mean. So add all the terms together and then divide that total number by the number of terms in the data set. That's how you find the mean or average of a data set.
Curated OER
What is the Median of a Data Set?
Mean, mode, median? What's the difference? How do you find them? The teacher focuses on explaining median in this video. She gives a good explanation and shows several examples using different sets of numbers.
Curated OER
How Do You Find the Range of a Data Set?
Looking for the range of a set of numbers? Well, that means you are looking for the difference between the largest value and the smallest value. So first, write the numbers in order from least to greatest. Then identify the largest value...
Curated OER
Poisson Process 2
Continuing his discussion of the Poisson Distribution (or Process) from the previous video, Sal takes students through the derivation of the traffic problem he had begun. The math gets gritty in this video as Sal takes out the graphic...
Curated OER
How Do You Find the Mode of a Data Set When There is More Than One Mode?
So you have a data set and you rewrite the numbers in order from least to greatest. You find that there are two number values that occur twice in the set. Oh no, mode means the number that occurs the most times in a set. Now what do you...
Curated OER
How Do You Find the Standard Deviation of a Data Set?
Find the standard deviation of a set of integers. Using the formula to find the standard deviation, the instructor shows you how to apply the formula to a small set of integers.
Curated OER
What is the Fundamental Counting Principle?
Oh my, five types of bread, eight kinds of lunchmeat, and six choices of cheeses. How many different combinations of sandwiches can be made? That's going to take a long time to figure out. No, it's not. Just use the Fundamental Counting...
Curated OER
What is the Mean of a Data Set?
Average, mean, average, mean. They are the same thing. So just use the formula for finding the average of a set of numbers to get the mean. Add up the value of the terms and then divide by the number of terms in the data set. There's the...
Curated OER
How Do You Find the Mode of a Data Set?
What is the mode of a data set? Mean, mode, median. Get confused in remembering which is which? Mode is the number that appears the most times in a data set. So given a data set, arrange the numbers in numerical value from least to...
Curated OER
What is the Mode of a Data Set?
Mode, the number that occurs most often. A data set could have one mode, no modes, or multiple modes. The teacher explains these variations and even gives some example of non-numerical data and how to figure out the mode.
Khan Academy
Permutations
This video is an introduction to permutations. Sal shows two different examples, defines the mathematical notation for permutations, and derives a formula for finding a permutation without repetition of choices. He tries to convey an...
Curated OER
Poisson Process 1
Sal's lesson begins with a word problem about the number of cars that pass by a certain point at any given time. Using (and explaining) the Poisson Process, Sal outlines the necessary assumptions and "mathematical tools" to solve this...
Crash Course
The Black Legend, Native Americans, and Spaniards
Delve into the complex social and political structures of Native Americans prior to the arrival of European colonists. This video provides an overview of pre-Columbian America, with particular regard to the the colonization efforts of...
Teach Engineering
The Grand Challenge: Fix the Hip Challenge
It may be time to get to know the skeletons in your family. The first lesson in a series of 5, introduces the class to the concept of osteoporosis. The class members brainstorm possible causes and whether the family should be concerned...
Crash Course
Environmental Econ
How does the economy affect the environment—and vice versa? A video from Crash Course Economics discusses the ways supply and demand for products made with non-renewable resources can result in the Tragedy of the Commons, or even in the...