No one wants to be average, so mathematicians use the term mean instead of average. The video explains how to calculate the mean, how to calculate the percent error, and why this information is important. Finally, the video considers the...

Does the time of day affect your body weight? If so, how? The narrator conducts an experiment to determine when the human body is its lightest. Viewers see interesting, and often amusing, theories from on-the-spot interviews and watch as...

Star light, start bright! What do the brightness and color of stars tell us about the stars we see at night? Learners explore the life of stars with an information-packed video. Topics include the relationship between mass and...

To be or not to be — is the question really that simple? According to the classic quantum mechanical model ... well, maybe! Explore the nature of event prediction and probability in a short, animated video. Young physicists...

What insect is the origin of the phrase computer bug? Scholars view a video to learn about the challenges with early computing efforts, including moths finding their way into mechanical relays. From vacuum tubes to transistors, the video...

How do chemists use solubility data? Chemistry scholars learn the usefulness of solubility curves and how they are generated. The seventh part in a series of 14 discusses the solubility rules, plotting solubility data, and how pupils can...

Here's proof that small-scale chemistry can have a big-time impact! An engaging video introduces high school environmental chemists to the concept of studying the outcomes of reactions in a lab setting to determine how much pollution it...

Order the data within a stem-and-leaf display. Pupils take data and create and ordered stem-and-leaf diagrams, including the key. Participants take their data and determine answers about the information. Class members then find...

Representing data is as easy as pie. Class members construct pie charts given a frequency table. Individuals then determine the size of the angles needed for each sector and interpret the size of sectors within the context of frequency....

In the late 1700s, Edward Jenner applied the scientific method and discovered that injecting people with cowpox prevented them from acquiring smallpox—leading to the first vaccine. In the fourth video of the series, individuals listen to...

Correlate the responses to identify the cause. A resource presents how individuals sometimes confuse the issue between correlation and causation. The video provides examples of different variables that are correlated — but one does...

You mean it's just average? Provide the definition of the mean of a set of data with a concept video. The instructor works three problems that use the concept of the mean. Each problem increases in difficulty from finding a basic average...

Believe it or not, sometimes statistics can be misleading. Introduce young statisticians to Simpson's paradox, where the same set of data can show opposite trends, depending on lurking variables.

This short but information-packed presentation begins with a thorough review of how to calculate mean, median, and mode of a given data set. What makes it a unique lesson is the follow-up example and presentation of how these measures of...

Join Zoe as she calculates the average number of points RJ scored in his basketball games. This step-by-step presentation clearly models the procedure for finding the mean of a data set, including examples with both whole number and...

Zoe is curious how many goals her soccer team usually scores in a game. To answer the question, she walks through the process of finding the median of a data set in this step-by-step presentation. Examples are included that model how to...

Sam is running for class treasurer and Zoe wants to know if he won the election. Follow along as she counts up the votes and uses the mode to determine the winner. After viewing the presentation, work through the Try It! practice...

Sal references the US Bureau of Economic Analysis to demonstrate discrepancies in US imports and exports with actual documentation. A financial account chart documents the inflow and outflow of asset ownership, and Sal observes how few...

To prove the points about the Chinese-US trade imbalance Sal made in previous videos, he presents documentation from the Chinese Central Bank that shows the M1 money supply every month. He compares the total Yuan supply from November...

In further analysis of the Chinese Central Bank's documentation, Sal examines how much of the M1 supply increase was spent on foreign assets. He calculates the numbers for 2009/10, converting them to dollars to help scholars comprehend...

So you've got some x-values and some y-values and you want to make a scatter plot. First thing is to make a table for your x and y values. Then make ordered pairs and you can plot them.

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...

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.

You already know that the mode of a data set is the number that occurs most often in the set. But what if all of the numbers in the set occur the same number of times? I could tell you the answer, but I think you should watch the video.