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Politics : Politics for Pros- moderated -- Ignore unavailable to you. Want to Upgrade?

To: Neeka who wrote (480050)	4/1/2012 7:14:35 PM
From: goldworldnet	Respond to of 793801

He's a good teacher and very thorough. I like that program he uses. The script and multicolors help hold your attention. * * *

To: Neeka who wrote (480050)	4/1/2012 7:36:46 PM
From: Stan	2 Recommendations Read Replies (1) \| Respond to of 793801

I've viewed 89 of them so far. He makes the complex simple, a sign of genius. Here is one that is relevant to our current debt problem - Credit Default Swaps.

To: Neeka who wrote (480050)	4/1/2012 8:44:30 PM
From: ManyMoose	Respond to of 793801

I wish that guy had been my statistics teacher. Most statistics teachers seem to revel in giving their students a brain freeze with terms like standard deviation, standard error, mode, mean, null-hypothesis, z-scores, normal distribution, chi-square, confidence intervals, degrees of freedom, and so forth. Nowhere is the old quip that there are "Lies, damn lies, and statistics" better displayed than in a political campaign. Here are two different statistical concepts I found in Wikipedia. Tell me which one is the more understandable. the chi-squared distribution with k degrees of freedom is the distribution of a sum of the squares of k independent standard normal random variables. It is one of the most widely used probability distributions in inferential statistics, e.g., in hypothesis testing or in construction of confidence intervals en.wikipedia.org "*Standard deviation* is a widely used measure of variability or diversity used in statistics and probability theory. It shows how much variation or "dispersion" exists from the average (mean, or expected value). A low standard deviation indicates that the data points tend to be very close to the mean, whereas high standard deviation indicates that the data points are spread out over a large range of values." en.wikipedia.org Example of two sample populations with the same mean and different standard deviations. Red population has mean 100 and SD 10; blue population has mean 100 and SD 50.