Statisticshowto - statisticshowto.com
General Information:
Latest News:
How to Use The Interquartile Range Calculator 26 Aug 2013 | 10:56 pm
The Interquartile Range Calculator on this site enables you to enter a series of numbers and get the interquartile range without having to solve the interquartile range equation. The interquartile ran...
Math and Art Meet Statistics 26 Aug 2013 | 08:55 pm
In my “spare time,” I’m a visual artist as well as a mathematician. As a visual artist, I’m well-aware of the math/art connection. Golden ratios, proportions and grids to name a couple of ways math bl...
What Does Pearson’s Correlation Coefficient Mean? 26 Aug 2013 | 01:56 am
Pearson’s Correlation returns a value of between -1 and +1. A -1 means there is a strong negative correlation and +1 means that there is a strong positive correlation. (How to Calculate the Pearson Co...
What is The Interquartile Range Formula? 25 Aug 2013 | 10:33 pm
The interquartile range, or IQR (also called the midspread or middle fifty), is the difference between the third and the first quartile in a data set. The IQR is a measure of how spread out your data ...
Binomial Distribution Article Index 25 Aug 2013 | 08:38 pm
Binomial distribution is a hugely important concept in statistics. You’ll be using it over and over again in elementary statistics or AP statistics. If you’re confused about what “binomial distributio...
The Drug Test Paradox 25 Aug 2013 | 08:02 pm
You take an HIV test that is 99% accurate and the test is positive. What is the probability that you are HIV positive? Pretty high: 99%. I’m freaking out. Pretty low. Probably about 1 in 100. I’ll s...
Sally Clark and The Misleading Statistic 25 Aug 2013 | 05:19 am
Sally Clark suffered a terrible loss: both of her children died from Sudden Infant Death syndrome. A lack of physical evidence surrounded the case. However, the compelling statistic used against her i...
How to Use the Permutations Calculator 25 Aug 2013 | 04:44 am
The permutations calculator on this site takes all of the guesswork out of calculating permutations (or you can use it to check your work!). The calculator takes the legwork out of working ugly equati...
Correlation Coefficient Index 25 Aug 2013 | 02:05 am
The correlation coefficient is used in statistics to find how different variables relate to each other. If they are related, the correlation coefficient will return a value that tells you how strong t...
What is Cluster Sampling? 24 Aug 2013 | 09:34 pm
Cluster sampling is used in statistics when natural groups are present in a population. The whole population is subdivided into clusters, or groups, and random samples are then collected from each gro...
