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3Blue1Brown
Pi hiding in prime regularities
A beutiful derivation of a formula for pi. At first, 1-1/3+1/5-1/7+1/9-.... seems unrelated to circles, but in fact there is a circle hiding here, as well as some interesting facts about prime numbers in the context of complex numbers.
3Blue1Brown
Pi hiding in prime regularities
A beutiful derivation of a formula for pi. At first, 1-1/3+1/5-1/7+1/9-.... seems unrelated to circles, but in fact there is a circle hiding here, as well as some interesting facts about prime numbers in the context of complex numbers.
Curated Video
How to Calculate Percent Change - Percent Increase, Decrease and Percent Error
In this video, How to Calculate Percent Change from Math Defined, Mrs. C walks you through step-by-step examples using real-life situations you can relate to — like video views, price drops, and even a jellybean guessing contest. 🍬
Zach Star
Dear Calculus 2 Students, This is why you're learning Taylor Series
Dear Calculus 2 Students, This is why you're learning Taylor Series
Curated Video
Solving for Unknown Percentages Using Various Methods
In this video, we will teach viewers how to solve for unknown percentages using various methods, including the bar model, table, and proportion. We will walk viewers through three examples, including how to calculate the percentage...
Professor Dave Explains
Calculating Percent Error
Sometimes we take measurements, and sometimes we're off by a little bit. How far off? Does it make sense to just use a number? Shouldn't we use something that tells us how far off we are relative to the true value? Yes we should, hence,...
Corbett Maths
Error Intervals
Rounding a number sometimes creates more problems. A video lesson explains the error intervals for rounded and truncated numbers. The narrator expresses the error as a compound inequality and uses a number line as a reference.
Anywhere Math
Percents of Increase and Decrease
Increase your class's knowledge of percent change several fold. Viewers of an informative video learn how to calculate percent increase and decrease. They also see how to determine percent error and look at examples of each type of...
Teacher's Pet
Using Math to Analyze Data
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...
Educator.com
Possible and Relative Error
Here's a video that demonstrate the meaning of possible and relative error using differentials. As the instructor works through the problem, he gives formulas for determining the different types of errors. He shows two approaches to the...
statisticsfun
How to Calculate Margin of Error and Standard Deviation
What did the math book say to the psychology book? I have a lot of problems. A helpful video covers how to calculate the margin of error with various standard deviation numbers.
statisticsfun
How to Calculate Sample Size
If your sample size is small and your standard deviation is high, your results mean nothing. The video explains how to solve for sample size, assuming you are given the confidence, standard deviation, and error rate.