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  2. One- and two-tailed tests - Wikipedia

    en.wikipedia.org/wiki/One-_and_two-tailed_tests

    Normal distribution, showing two tails. The distinction between one-tailed and two-tailed tests was popularized by Ronald Fisher in the influential book Statistical Methods for Research Workers, [7] where he applied it especially to the normal distribution, which is a symmetric distribution with two equal tails. The normal distribution is a ...

  3. Pigtail - Wikipedia

    en.wikipedia.org/wiki/Pigtail

    A woman with long pigtails and braids.. In the context of hairstyles, the usage of the term pigtail (or twin tail or twintail) shows considerable variation.The term may refer to a single braid, but is more frequently used in the plural ("pigtails") to refer to twin braids on opposite sides of the head.

  4. Checking whether a coin is fair - Wikipedia

    en.wikipedia.org/wiki/Checking_whether_a_coin_is...

    An important difference between these two approaches is that the first approach gives some weight to one's prior experience of tossing coins, while the second does not. The question of how much weight to give to prior experience, depending on the quality (credibility) of that experience, is discussed under credibility theory.

  5. Z-test - Wikipedia

    en.wikipedia.org/wiki/Z-test

    The z-test for comparing two proportions is a statistical method used to evaluate whether the proportion of a certain characteristic differs significantly between two independent samples. This test leverages the property that the sample proportions (which is the average of observations coming from a Bernoulli distribution ) are asymptotically ...

  6. Why Dogs Chase Their Tails - AOL

    www.aol.com/lifestyle/why-dogs-chase-tails...

    One common dog quirk involves chasing their own tails. While many dogs do it when struck with a burst of playfulness, the reasons behind self-tail chasing are varied. Often this behavior ...

  7. The Biggest Differences Between Netflix's 'One Piece' and the ...

    www.aol.com/biggest-differences-between-netflixs...

    Here, what you need to know about the difference between the live-action version of One Piece as compared to the manga and anime series. Netflix/Cartoon Network 1.

  8. Bakeneko - Wikipedia

    en.wikipedia.org/wiki/Bakeneko

    The distinction between them is often ambiguous, but the largest difference is that the nekomata has two tails, while the bakeneko has only one. There are legends of bakeneko in various parts of Japan, but the tale of the Nabeshima Bakeneko Disturbance in Saga Prefecture is especially famous.

  9. Testing forgotten rape kits could free the innocent. Here’s ...

    www.aol.com/testing-forgotten-rape-kits-could...

    One study later estimated the number at between 300,000 and 400,000. During the hearing, U.S. Rep. Jerrold Nadler of New York talked about the promise of DNA testing.