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Видео добавленное пользователем “MrNystrom”
What are radians? Simply explained
 
08:40
WHAT the heck is a radian?
Просмотров: 80119 MrNystrom
What is the CENTRAL LIMIT THEOREM?  and why is it so hard to understand??
 
08:30
This video will explain what the heck this thing is.. how it is formed... and why these "sampling distributions" are normalish, even when the population is bimodal
Просмотров: 160170 MrNystrom
What is a "Standard Deviation?"  and where does that formula come from
 
17:26
Stuck on standard deviation?? This video will help you understand what that crazy formula really says.. Watch a few times if necessary... "THE AVERAGE DISTANCE TO THE MEAN!!" *sort of... How to think of this measure of spread...
Просмотров: 934564 MrNystrom
Basic Logic of hypothesis testing
 
10:03
Просмотров: 86651 MrNystrom
What is a P Value? What does it tell us?
 
10:31
Discussion about the p value... what it means and how to interpret it. If the null were true! reject or fail to reject?
Просмотров: 288530 MrNystrom
Intro to probability 2: Independent and disjoint (
 
12:55
Disjoint or independent ? This video discusses both.
Просмотров: 30604 MrNystrom
Intro to Probability 3: General Addition Rule; Union; OR
 
09:11
Discussing or, adding and general addition
Просмотров: 14816 MrNystrom
What does r squared tell us? What does it all mean
 
10:07
How should you interpret R squared? what does it really tell us? this video should help
Просмотров: 166101 MrNystrom
WHAT IS A "SAMPLING DISTRIBUTION" and how is it different from a "sample distribution"... and stuff
 
12:16
What is a sampLING distribution? It is a distribution of a bunch of p-hats or x-bars... watch and see
Просмотров: 198687 MrNystrom
AP STATS SUMMER VID 1...
 
07:44
Quick intro to the course. Quick discussion on important vocabulary that we will use throughout the year. Inferential vs. Descriptive... Statistics, Population, parameter, sample, statistic, census
Просмотров: 25358 MrNystrom
Null and alternative hypotheses
 
10:06
Просмотров: 60938 MrNystrom
QUICK CONFIDENCE INTERVAL FOR 1 PROPORTION
 
06:21
Here is a confidence interval review.
Просмотров: 36835 MrNystrom
NORMAL MODEL PART 1 --- EMPIRICAL RULE (misspelled in video ... oops :)  68 95 99.7
 
20:18
How to build a normal model by using the EMPIRICAL RULE... How to actually construct a model that can be used to answer LOTS of questions
Просмотров: 65883 MrNystrom
Intro to Probability 4: General multiplication rule; Intersection; AND
 
09:30
Walking through the general multiplication rule
Просмотров: 18082 MrNystrom
Intro to probability 1: Basic notation
 
14:38
A basic intro to probability and notation
Просмотров: 31482 MrNystrom
How likely to get lots of cheese lovers??  Sampling Distribution for p-hat
 
09:53
Often you are asked the likelihood of getting some proportion of your sample to have some characteristic when you know the proportion of the population who have that characteristic.. here is a cheezy example.
Просмотров: 33293 MrNystrom
RESIDUALS!  What are they? how to find them, how to use them
 
09:07
How do you calculate a redisual? How do you find an actual value given the residual? What is a residual?
Просмотров: 120436 MrNystrom
NORMAL MODEL PART 2- FLO CHART - NORMCDF and INVNORM
 
15:04
How do you go from %ile to Z, or from Z to %ile? use the 2 functions on your calculator!!!! Do you like my "karate CHOP!!" pose????
Просмотров: 22222 MrNystrom
What is REGRESSION video 1?The Pearson product-moment correlation coefficient
 
10:42
Quick intro to regression. How to make scatter plot on TI 83 84 89. Describing scatterplots (strength form direction strange stuff)...
Просмотров: 20570 MrNystrom
THINK OF MEAN MEDIAN MODE BALANCE
 
06:32
Просмотров: 12680 MrNystrom
1 proportion z test
 
11:53
Looking at the logic of 1 proportion z tests. You can do it in 3 easy steps.. the key to understanding is drawing the null model.
Просмотров: 35367 MrNystrom
5-6 Perfect Square Trinomials, Factoring with Mr. Nystrom
 
10:00
perfect squares dude! you can do it! -mr nystrom
Просмотров: 18575 MrNystrom
mean stdev med iqr when
 
04:40
Просмотров: 10508 MrNystrom
AP STATS SUMMER VID 3
 
08:50
Looking a bit into Frequency, relative frequency, cumulative frequency, relative cumulative frequency, dot plot, histogram....
Просмотров: 16121 MrNystrom
contingency table intro
 
13:36
Просмотров: 35037 MrNystrom
NORMAL MODEL PART 3 - FLO CHART - Z SCORE FORMULA!!
 
10:41
How do you go from a data value to a z score or from a z score to a data value?? USE THE Z SCORE FORMULA
Просмотров: 22082 MrNystrom
UNDERSTANDING BOX AND WHISKER PLOTS by using the FISH TANK METHOD  (convert to histogram to "see")
 
08:47
This video gives you a nice way to think about box and whisker plots. Please remember that you can never tell what is happening within the quartiles, but you can get a general feel... Box and whiskers are used to compare many distributions on the same axes. Seldomly would you use one to describe a single distribution.... GOOOD LUCK
Просмотров: 8255 MrNystrom
INDEPENDENT OR ASSOCIATION? Reading a CONTINGENCY TABLE
 
08:43
How can you tell if 2 variables are independent or associated by simply looking at a contingency table? Here's how... (you need to do a little math...)
Просмотров: 26124 MrNystrom
n vs n-1.  Why are there 2 formulas for the standard deviation?
 
12:03
I hope to help you understand why there are 2 formulas for the SD. They are bith trying to do the same thing..
Просмотров: 53761 MrNystrom
What is regression video 3?  A DEEP LOOK INTO The Pearson product-moment correlation coefficient
 
13:13
Where does the correlation coefficient, r, come from? This video explains how it is calculated and gives a brief example of a hand calculation. There are many other formulas that you can use to calculate r, some are actually easier than this, however, I feel that this formula is the best for understanding where the r value comes from.... You will always use technology to find this value, but it is nice to know where it comes from....
Просмотров: 31698 MrNystrom
SHIFTING SCALING
 
10:38
Просмотров: 7682 MrNystrom
TI 84 83 Regression line and residuals
 
09:12
Just some step by step directions about how do to some regression stuff on your TI !!!
Просмотров: 94730 MrNystrom
Leverage Influence
 
11:16
Просмотров: 12255 MrNystrom
What is pi? Where does it come from? Simplified pi
 
08:33
Here we visualize 2 ways to "see" pi.
Просмотров: 17037 MrNystrom
WHAT IS A CONFIDENCE INTERVAL???  an intro fo yo
 
15:40
What is a confidence interval? It is a guess, and educated one. It is a "parameter catcher" and you hope to catch the true parameter.. but you never know if you actually did, because you don't know which p-hat you randomly got!!!
Просмотров: 253964 MrNystrom
What is regression video 2? What does R say? The Pearson product-moment correlation coefficient
 
15:19
what is the r value? the correlation coefficient? Here is a quick explanation of the r value and what it means.. How to find r value and equation on TI 84 83 89 .. r value basics
Просмотров: 49548 MrNystrom
How likely to get a number of cheese lovers... Normal Approx to BINOMIAL
 
07:17
Similar to sampling distribution for sample proportions. This video shows the relationship between the normal approx of the binomial and the sampling distribution of sample proportions. One (bino) is the distribution of the number of successes in a bunch of random samples, the other (p-hats) is the distribution of the proportions of successes in a bunch of random samples.
Просмотров: 9585 MrNystrom
Interpret Slope and intercept
 
07:19
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INTRO TO BOX PLOTS BASICS
 
14:43
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4-5 Multiplying a Polynomial by a Monomial
 
08:09
polynomial monomial? nice FIND MY MISTAKE!!!!!
Просмотров: 20416 MrNystrom
Box and Whisker outliers fish net
 
13:52
Просмотров: 17057 MrNystrom
5-9 Part 3 A NEW WAY TO FACTOR TRINOMIALS... COOL STUFF
 
09:58
two more approaches to factoring. Many students find this (the second method) the simplest way..
Просмотров: 14902 MrNystrom
5-10 Factoring By Grouping
 
09:46
Look for the right groups, move aroung the terms!
Просмотров: 5972 MrNystrom
Regression Formulas..
 
14:10
Where do these formulas come from??? What do they mean???
Просмотров: 52364 MrNystrom
Don't go over the weight limit of the boat..  Sampling Distribution for x-bar
 
06:07
Weight limit problems, how likely to go over the limit with n people??
Просмотров: 16224 MrNystrom
CRITICAL VALUE?? Z* ?  what is it?
 
18:40
More Confidence intervals.. this one focuses on z crit
Просмотров: 38427 MrNystrom
CONDITIONS FOR 1-PROPORTION STUFF (conf intervals and tests)
 
08:11
What are these conditions and why do we have to meet them????
Просмотров: 11523 MrNystrom
1-3 Equations
 
08:23
IS YOUR EQUATION UNSATISFIED?
Просмотров: 1961 MrNystrom
Use Regression Formulas - What does R SY / SX mean?
 
09:01
Given the summary stats, how can you use the formulas to make an equation (a model)? Also... what does that r Sy / Sx mean???
Просмотров: 41418 MrNystrom
1-2 Grouping Symbols Lecture
 
07:59
Grouping Symbols, What are they? Check it out....
Просмотров: 4493 MrNystrom