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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.

The Origin of the iPhone Marimba Ringtone Is Shrouded in Mystery

electronics.howstuffworks.com/composer-origin-iphone-marimba-ringtone.htm

Who wrote the iPhone marimba ringtone? Learn more about the marimba ringtone's origins in this HowStuffWorks Now article.

Why Did the U.S. Experience a Coin Shortage?

money.howstuffworks.com/coin-shortage.htm

Just when America seemed to be getting over the great toilet paper shortage, the next thing in short supply was coins. But why?

Why do you have to turn your phone on at airport security?

science.howstuffworks.com/transport/flight/modern/why-do-you-have-to-turn-your-phone-on-at-airport-security.htm

Going through airport security is the worst part of flying for most people. Now you may be asked to turn your cell phone on in the security line. Why do you have to do that? And does it really keep us safe?

Did a time traveler attend the premiere of Charlie Chaplin's 'The Circus'?

entertainment.howstuffworks.com/did-time-traveler-attend-premiere-charlie-chaplins-circus.htm

Do we finally have proof of time travel? Learn all about the 'time traveler' at Charlie Chaplin's movie premiere at HowStuffWorks.

Are Bug Zappers Bad News?

science.howstuffworks.com/environmental/conservation/issues/bug-zappers-are-bad-news.htm

Not only do bug zappers mostly kill beneficial insects, they also can serve you up a side of bacteria with your burger.

Do Processed Foods Have 'Bliss Points'?

recipes.howstuffworks.com/processed-foods-bliss-points.htm

Chowing down on an entire bag of chips doesn't happen by accident. HowStuffWorks looks at why that snack is designed to be irresistible.

Giant African Land Snails Invade South Florida Again

animals.howstuffworks.com/marine-life/giant-african-land-snails-news.htm

These massive mollusks are one of the world's most invasive species. They have the potential to devastate Florida's agriculture. Oh, and they can cause meningitis in humans.

What % Lucky Are You?

play.howstuffworks.com/quiz/what--lucky-are-you-snap

Some people don't believe luck is an actual thing, which probably means they've never had a run of good luck or bad luck in their lives. The rest of us know the truth though. Want to know just how lucky you are? Take the quiz!

How Attractive Is Your Car?

play.howstuffworks.com/quiz/how-attractive-is-your-car

Everyone knows you can't judge a book by its cover and that looks aren't everything. That said, does anyone really want to be driving a truly ugly car around town? Answer this quiz and we'll tell you just how attractive your ride really is!

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