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  2. Murder of Mackenzie Cowell - Wikipedia

    en.wikipedia.org/wiki/Murder_of_Mackenzie_Cowell

    Murder of Mackenzie Cowell. Mackenzie Nicole Cowell (April 1, 1992 – February 9, 2010) was a 17-year-old American youth who went missing and was murdered in February 2010. She was last seen at the beauty school she attended in Wenatchee, Washington. Her body was discovered on the banks of the Columbia River four days later on February 13, 2010.

  3. Wilson K-Factor - Wikipedia

    en.wikipedia.org/wiki/Wilson_K-Factor

    Wilson K-Factor. Wilson K-Factor refers to the generation of Wilson Sporting Goods tennis racquets that incorporate the "K-Factor" technology. These racquets were first revealed in 2007 and are still popular among players. Roger Federer as well as several other highly ranked players endorsed these racquets up until 2010 making them extremely ...

  4. Binomial proportion confidence interval - Wikipedia

    en.wikipedia.org/wiki/Binomial_proportion...

    The probability density function (PDF) for the Wilson score interval, plus PDF s at interval bounds. Tail areas are equal. Since the interval is derived by solving from the normal approximation to the binomial, the Wilson score interval ( , + ) has the property of being guaranteed to obtain the same result as the equivalent z-test or chi-squared test.

  5. Presidency of Woodrow Wilson - Wikipedia

    en.wikipedia.org/wiki/Presidency_of_Woodrow_Wilson

    v. t. e. Woodrow Wilson 's tenure as the 28th president of the United States lasted from March 4, 1913, until March 4, 1921. He was largely incapacitated the last year and a half. He became president after winning the 1912 election. Wilson was a Democrat who previously served as governor of New Jersey.

  6. The Book of Five Rings - Wikipedia

    en.wikipedia.org/wiki/The_Book_of_Five_Rings

    Kenjutsu and the martial arts. Publication date. 1645. The Book of Five Rings (五輪書, Go Rin no Sho) is a text on kenjutsu and the martial arts in general, written by the Japanese swordsman Miyamoto Musashi around 1645. Many translations have been made, and it has garnered broad attention in East Asia and throughout the world.

  7. Blade off testing - Wikipedia

    en.wikipedia.org/wiki/Blade_off_testing

    Blade off testing or blade out testing is a specific form of air safety testing required by the Federal Aviation Administration and other safety agencies to certify safety performance of jet engines. The tests require engine manufacturers to carry out at least two tests of the engine, to make sure that the engine can survive a compressor or fan ...

  8. Cutoff frequency - Wikipedia

    en.wikipedia.org/wiki/Cutoff_frequency

    The cutoff frequency is the critical frequency between propagation and attenuation, which corresponds to the frequency at which the longitudinal wavenumber is zero. It is given by The wave equations are also valid below the cutoff frequency, where the longitudinal wave number is imaginary. In this case, the field decays exponentially along the ...

  9. 5 key lessons for investors after this week's wild stock ...

    www.aol.com/5-key-lessons-investors-weeks...

    The roller-coaster in stocks carries some key lessons for investors and consumers alike. First, expert say, it is important to resist the urge to join the herd of panicked investors rushing for ...