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Interquartile Range: How to Calculate and Visualize IQR
science.howstuffworks.com/math-concepts/interquartile-range.htm
The interquartile range (IQR) is a statistical measure of the middle values of a sample data set that is separated into four equal parts. This middle-value grouping can provide a median range between the upper half and lower half of the data you've collected, allowing you to ignore extreme values.
Qualitative vs. Quantitative: Key Differences in Research Types
science.howstuffworks.com/math-concepts/qualitative-vs-quantitative.htm
Trying to figure out whether your research problem would benefit from qualitative vs. quantitative data? Learn about the differences and uses of each.
What Are Confidence Intervals in Statistics?
science.howstuffworks.com/math-concepts/confidence-interval.htm
Science requires that we make guesses, which is why we have confidence intervals.
How Do Television Ratings Work?
entertainment.howstuffworks.com/question433.htm
How do television ratings work? How do they figure out how many people are watching a show?
How Political Polling Works
people.howstuffworks.com/political-polling.htm
Almost every day it seems like there is a new poll out tracking the president's performance or some political issue. But who selects the people who respond to these polls? And can you trust the numbers?
The 12 Most Aggressive Sharks
animals.howstuffworks.com/fish/sharks/most-dangerous-shark.htm
Dangerous sharks may not hunt humans, but if they took a sample bite, they could do some serious damage. Which 10 sharks make up the worst in the ocean?
How EVP Works
science.howstuffworks.com/science-vs-myth/afterlife/evp.htm
EVP is the recording of sounds and voices onto tapes and other electronic devices. Find out what EVP is and learn how EVP is recorded and analyzed.
How Cost of Living Raises Work
money.howstuffworks.com/business/professional-development/cost-of-living-raises.htm
Cost of living raises help to adjust your salary along with inflation. Visit HowStuffWorks to learn all about cost of living raises.
Are teens more likely to die in a car accident than adults?
You might think more teens die in car accidents in the U.S. than adults. HowStuffWorks digs into the statistics to see if that's true.
Can you test your fertility at home?
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/fertility/test-your-fertility-at-home.htm
Can you test your fertility at home? Visit Discovery Fit & Health to learn if you can test your fertility at home.