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This video takes a look continuous random variables with a view to teaching it in the easiest way possible. We start by looking at the difference between a discrete random variable and a continuous random variable. We look at how the accuracy of a measurement can dictate the size of a continuous random variable and then look at why the probability of one specific event with continuous random variables is equal to zero (which still doesn't make a lot of sense!). I then show you how to use integration (calculus) to find the values of probabilities between two points including an unbounded domain. Finally, hybrid functions and the CAS calculator is used to demonstrate how technology can be used to help solve these questions. This topic is really rather important to the learning which will take place over the next few lessons. So, grab a cuppa and sit back whilst I try and show the excitement which is continuous random variables (made easy!).
This video continues the series on Continuous Random Variables by taking a look at how to find the mean, median and other percentiles for a continuous random variable. I start, as normal, by recapping the work from the previous video but also take a look at the work from Discrete Random Variables as this is important to know why the formulae we use in continuous random variables are used. Having looked at the theory, I take a look at some worked examples which find the Mean and Median for a continuous random variable.
Warning: This has nothing to do with Marmite, Vegemite or Jam! This video continues looking at continuous random variables. In previous videos, we have looked at what a continuous random variable is and how to find the median and mean. This video looks at how to find the variance and standard deviation for continuous random variables. There are a few worked examples and lots of puns, witticisms and great explanations.
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These are the videos which are available in each chapter. You will notice that some are free and some are for subscribers only. Making and hosting these videos costs a little bit of money. To help pay for the hosting fees I have no choice but to hide some of the videos and make them for subscribers only.