Be Smart
20 MILLION Year-Old Spider!! Unweaving Spider Silk
Living things have engineered some pretty awesome materials, but I'm not sure anything measures up to spider silk. It's as strong, as stretchy, and as resilient than even humans' most advanced creations like Kevlar and steel. So how do...
Curated Video
JavaScript Mastery from Zero to Hero - Prepare for Coding Interviews - What Is a Factorial in JavaScript (Probability Calculations)
In this video, you will learn about the concept of factorials in mathematics and how to calculate them using JavaScript. A factorial is a mathematical function that represents the product of all positive integers from 1 up to a given...
Curated Video
Data Science and Machine Learning (Theory and Projects) A to Z - Mathematical Derivations for Math Lovers (Optional): Binomial Random Variable
In this video, we will cover binomial random variable.
TMW Media
Combinations
This program covers the important topic of combinations in Probability and Statistics. We begin by discussing what a combination is and why it is a central topic in probability. Next, we solve several problems that involve combinations...
Curated Video
What Is The Factorial Of 1/2? SURPRISING (1/2)! = (√π)/2
Type 0.5! in your calculator to see what the factorial of one-half is. The result will be 0.886..., and the exact answer is the square root of pi divided by 2--amazing! How is this possible, when the factorial of a number n is defined as...
Curated Video
Solve ABC = A! + B! + C! The Factorial Digits Sum Puzzle!
I'm thinking of a three digit number where the number exactly equals the sum of the factorial of each digit. What is the number? My blog post for this video PopSugar featured one of my videos! Check it out:...
Curated Video
Can You Solve A Maths Competition Problem From The UK? Factorial Fractions
This is a fun problem that appeared in UKMT, an organization that organizes maths competitions and educational activities. What is the following equal to? Give your answer as an integer. (10! + 9!)(8! + 7!)(6! + 5!)(4! + 3!)(2! + 1!)...
Hip Hughes History
Industrial Age in the US (1/2): Industrial Revolution & Populism
A short video lecture detailing the main concepts of the Industrial Age. Geared for the United States History Regents examination. Students who would benefit include juniors taking a U.S. History course or perhaps for reviewing the...
Curated Video
One Of The Hardest Puzzles: Can You Make 24 From 3, 3, 8, 8?
This problem is tricky even for people who are good with numbers. Can you make 24 from the numbers 3, 3, 8, 8? You can use the operations + - × ÷ ( ). You have to use all four numbers (the digit 3 two times and the digit 8 two times)....
Curated Video
AMAZING Formula For Pi (π) - The Wallis Product
Start with the pair of fractions (2/1)(2/3). Now increment each number by 2 to get the pair of fractions (4/3)(4/5). Repeat this to get the next pair, and repeat this infinitely many times. If you then multiply all the fractions, you get...
TED-Ed
How Many Ways Can You Arrange a Deck of Cards?
Entertain and grab your learners' attention with a short video clip that engagingly teaches the concept of a permutation and how a factorial is a wonderful shortcut for theoretical probability calculations.
statisticsfun
Introduction to Permutations and Combinations
Upper level math doesn't have to be unapproachable. An instructional video uses virtual manipulatives to demonstrate the meaning of a permutation, a combination, and factorial.
Curated OER
How Do You Find a Number of Permutations Using the Fundamental Counting Principle?
The notion of permutations is used when rearranging objects or values. How many ways can the letters in the word NUMBER be rearranged? Don't try writing them all out one by one because it would take a long time. Use the Fundamental...
Khan Academy
Khan Academy: Pre Calculus: Combinations
A video that introduces the concept of combinations by building on knowledge of permutations. An arbitrary example is given and a formula for combinations is derived. This video also appears in the Probability strand. [10:11]
Khan Academy
Khan Academy: Pre Calculus: Permutations
Video introducing the concept of permutations. Gives two examples and derives the basic formula for how to determine the number of arrangements possible for "n" objects in "k" places. This video is also included in the Probability...