Video covering how to set up a Venn diagram. The video covers how to draw the diagram and then look at a set of data and place the data in the correct part of the Venn diagram. The sample problem is as follows.
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to calculate the probability of two dependent events in statistics.
One of Microsoft Excel's capabilities is to allow you to graph Normal Distribution, or the probability density function, for your busines. This is a quick and easy tracking feature you can learn in just a few minutes.
New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 55th installment in their series of digital spreadsheet magic tricks, you'll learn how to calculate probabilities with a pivot table (PivotTable). Specifically, you'll learn how to find joint, marginal and conditional probabilities.
In this video the tutor shows how to read a tree diagram. He shows an example of a tree diagram and says that tree diagram represents the choices made by a student in a cafeteria by ordering different kinds of foods and the chain in which the they are ordered. Now every combination that a student can choose at their lunch is mapped out in the form of a tree diagram. Now any choice a real student takes at the cafeteria can be mapped out to the tree diagram through the different branches. Now t...
This video explains how to solve the problem of probability dependent events. In this video the problem is that a box contains three pens, 2 markers, and 1 highlighter. The person selects one item at random and does not return it to the box. So what is the probability that the person selects 1 pen and 1 marker. That is 6 items total. First she count the all items that involved in this problem. Then count the individual probability of the pen and marker. The person selects 3 pens out of 6 item...
Calculating probablities can be used to help us make decision. PatrickJMT explains how to calculate probability in an "either A or not A" scenario. The probability of A plus the probability of not A is equal to one. Therefore, the probability of A is equal to one minus the probability of not A ; P(A)= 1 - P(not A). The probability of a major earthquake in San Francisco over a period of time is used as an example. The probablity of an earthquake of a magnitude of 7.5 or greater in San Francisc...
Probability computation is a complex process and even using a calculator can be difficult. But normal probability calculations can be performed quickly with the help of calculator once you know how to use it. So when you have to calculate a probability from a normal distribution you can use the functions on your scientific calculator. You can use the normal CDF function from you calculator to compute the area under a normal curve. The function requires lower band and upper band values, the me...
This is a very basic overview of probability, possibly intended for an eleven year old. It is a very good introduction to probability for one that has never encountered probability before. The instructor is not always clear in his intentions. Someone watching this video would learn about probability, ratios, percentages, and fraction. There is a set of required knowledge to understand what the instructor is talking about. The instructor uses very nice diagrams and also gives nice explanations...
In this video, we learn how to use probability to predict weather. Probability is the chance of something happening. If you want to know what the weather is going to be like, you can look at the weather report and see what each day is going to do throughout the week. Ask yourself what the probability is that the weather will be cloudy, judging from what the current work week weather is. First, figure out how many days there are total and then find out how many are cloudy versus how many are s...
In this video you will learn how to use probability of dependent events. The video starts with a small advertisement to there website http://www.yourteacher.com. Then its followed up by a math instructor taking you through a example problem to help you understand how you can begin solving problems of your own. The problem used in the example is: Andrea has 4 red socks and 8 blue socks in her drawer, she chooses one sock at random and puts it on, she then chooses another sock without looking, ...
Watch the following math probability video to learn how to find the probability of two independent events. This will help you with your algebra or geometry homework.
In this math lesson we will learn how to solve simple probability problems with a number cube. The probability of an event measures the likelihood that the event will occur.
In this lesson, you will learn how to solve a probability word problem. Need help with your algebra and geometry? Well...
In this permutation and combination math tutorial, we will learn how to find the number of possible arrangements in a set of objects. So, if you need help with your algebra or geometry homework, watch this.
First of all you need two different types of playing cards. You can take the blue and the red color cards. Spread these cards on the table facing downwards. Now mix them together randomly. Again mix them as thoroughly as you can on the table. Now pick out a red color card of your choice from anywhere on the table. Now again mix the cards thoroughly on the table. Now pick up any blue card of your choice anywhere from the table. Now ask the audience “what probability is that of picking the sa...
Need to know how to use your Texas Instruments graphing calculator for your college math or statistics class? You're in luck... watch this video tutorial to see how to do binomial probabilities with a TI-83 graphing calculator.
This video shows you how to do a mathematical representation on computing the nCr function using a TI-89 calculator. You can write the nCr notation in different forms. It can be simplified from nCr to C(n,r). The symbol can either be read "n choose r" or "n taken r at a time" which are from it's probability applications. On the example to find "26 choose 17", go to the Home screen of the TI-89 calculator and then go 2nd 5 which is Math. Go choose probability and then to nCr to type in (26,17)...
The basic idea of cleaning laminate floors is to use a dry or damp mop or cleaner for cleaning spills and as little moisture as possible. Laminate floors are resistant products and are made to last, but they also are sensible to moisture and thus it can produce damage. Also very important for defending against stains like tomato sauce and red wine is to be vigilant and clean them immediately. The longer a stain like that sits, the longer it is the probability of being permanent, so the best a...
Looking for a primer on how to work with BRIEF probability density functions and continuous random variables in calculus? Learn how with this free video calc lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).
Need a new prank or trick to play on your friends? Well this video is your solution. All you need a non-transitive dice and to follow this video and you will be cheating your friend in no time. The idea behind this video is to use dice that are non standard, which means instead of having from 1 to 6 on the sides, they have other numbers. By playing with what numbers go on the faces, the viewers can skew with the probabilities of what number comes up. With this idea, the viewers can make dice ...
If you use Microsoft Excel on a regular basis, odds are you work with numbers. Put those numbers to work. Statistical analysis allows you to find patterns, trends and probabilities within your data. In this MS Excel tutorial from everyone's favorite Excel guru, YouTube's ExcelsFun, the 50th installment in his "Excel Statistics" series of free video lessons, you'll learn the basics of probability:
As was mentioned by the great OTW last week, TOR, aka The Onion Router, has had its integrity attacked by the NSA. In an attempt to reduce the anonymity granted by the service, the NSA has opened a great many nodes of their own. The purpose is presumably to trace the origin of a communication by compromising some entrance and exit nodes. Once both are compromised, it is much easier to correlate traffic with a particular individual.
Particles, such as electrons, have a property called spin which can be measured at any angle, but when measured always results in one of two answers—up or down.
This is a video from yourteacher.com on simulations for Pre Algebra. It explains what simulations are and gives an example problem. The teacher reminds us that it is important to remember that there can be more than one simulation for a problem. The teacher suggests a simulation for the problem given and suggests how many times to run the simulation. The teacher makes a simulation for what sex a child is by flipping a coin and suggests to flip the coin 50 or 100 times. The teacher also explai...
Want a card trick to amaze and wow your friends? With just a normal deck of cards, you can fool and fascinate your friends by just following this video. First of all, go through your deck and grab 12 diamonds, 6 clubs, 3 hearts and 2 spades. Now hand these cards to your friend and have them shuffle and mix them up. With probability, the chance of a diamond showing up is over 50 percent. So all you have to do is predict that the card on the top of the deck is a diamond. More than half the time...
Central limit theorum is easily one of the most fundamental and profound concepts in statistics and perhaps in mathematics as a whole. In probability theory, the central limit theorum (CLT) states conditions under which the mean of a suffiently large number of independent random large variables (each with finite means and variance) will be normally distributed, approximately. Huh? If you are having trouble understanding central limit theorum and need help trying to solve it, check out this tu...
Welcome back, my novice hackers! I've written a couple of articles on reconnaissance and its importance, and as I've said before, a good hacker will spend 3 to 4 more times doing reconnaissance than actually exploiting the system. If your recon isn't good, you'll likely fail, or worse—end up serving time and becoming Bubba's wife for a couple years. I can't say it enough—recon is critical.
So you need to find the p-value for your hypothesis test. To do so, employ the spreadsheet program Microsoft Excel. Using a simple formula, you can easily determine the p-value for your tests and thereby conclude strong or weak support of the null hypothesis.
Cryptography is the science of keeping secrets, or more specifically, the science of disguising them. As a point of fact, cryptography has progressed quite a bit farther and now encompasses file and message integrity, sender authentication, and pseudo-random number generators.
Face ID is possibly the iPhone X's make-it-or-break-it feature. Apple is asking previous iPhone owners to put a lot of faith into their home button replacement, and so far, the results seem pretty good. That is until CNN tested the security feature with identical twins.
In this Tutorial I will show you how you can use the frequency of letters to decrypt the famous Caesar cipher. I hope it is easy to understand and helpful for getting in touch with basic cryptanalysis. If you find any mistakes or have questions feel free to ask me. Finally I ask you to give me feedback which I will take into account for the next part.
Welcome back, my nascent Hackers! In my last blog, we looked at a passive way to gather information necessary for a hack. The advantage of using passive recon is that it's totally undetectable, meaning that the target never knows you're scouting them and you leave no tracks. The disadvantage, of course, is that it's limited to only some websites and not entirely reliable.
Welcome back, my greenhorn hackers!
To some, SCRABBLE is just a board game to play during family game night or during a casual get-together. Others think of SCRABBLE as a mere hobby. But with any activity, there will always be fanatics—the ones who would rather sell their soul than stop—the ones with a constant yearning for self-improvement—the merciless.
"Buy low and sell high" is great advice, but how do you accomplish it? While the stock market can be unpredictable, it's not a complete enigma. There are patterns to watch for that can make you a successful trader.
When watching stories in your Instagram feed, there's a high probability that you'll come across an AR filter that you'll want to try out for yourself. A quick browse and search in the Effect Gallery will bring up nothing in most cases. But all of that unproductive work isn't necessary because there's a faster and simpler way to get the AR effect in Instagram Stories, and it works all of the time.
Kazendi, a London-based HoloLens development and rapid prototyping studio, just released a new iOS app in Apple's App Store that lets developers stream HoloLens applications live from the headset to an iPad or iPhone. It's called HoloStream, and is the first iOS/HoloLens crossover app we've seen so far.
As you have no doubt observed, brothers and sisters do not mate. While they may find one another attractive, they find the notion of sex with one another repulsive. This is because a child produced by siblings has a high probability of sharing the same recessive genes, and recessive genes are often harmful unless coupled with dominant genes.
Minesweeper is one of those games that everyone plays, but hardly anyone actually knows how to play. Most people just click random squares and see how far they can get.
