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A high school student explains her engineering project to a judge in Sacramento, California, United States (2015). Science, technology, engineering, and mathematics ( STEM) is an umbrella term used to group together the distinct but related technical disciplines of science, technology, engineering, and mathematics.
The standard deviation σ of X is defined as which can be shown to equal. Using words, the standard deviation is the square root of the variance of X . The standard deviation of a probability distribution is the same as that of a random variable having that distribution. Not all random variables have a standard deviation.
Zone 5 uses eight 2-digit codes (51–58) and two sets of 3-digit codes (50x, 59x) to serve South and Central America. Zone 6 uses seven 2-digit codes (60–66) and three sets of 3-digit codes (67x–69x) to serve Southeast Asia and Oceania. Zone 7 uses an integrated numbering plan; two digits (7x) determine the area served: Russia or Kazakhstan.
The Federal Aviation Administration lifted a ground stop for all Alaska Airlines flights Wednesday after grounding the planes earlier as a result of a computer problem at the carrier.
Amanda Knox was back on trial for slander Wednesday for wrongly accusing a Congolese man of murdering her roommate while the young women were exchange students in Italy. Knox herself was convicted ...
Updated April 19, 2024 at 3:29 PM. Three police officers have been charged in the death of a Northern California man who was pinned facedown on the ground for more than five minutes. The Alameda ...
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The MP5SD was created in 1974, Heckler & Koch initiated design work on a sound-suppressed variant of the MP5, designated the MP5SD (SD—Schalldämpfer, German for "sound suppressor"), which features an integral but detachable aluminium sound suppressor and a lightweight bolt. The weapon's 146 mm (5.7 in) barrel has 30 2.5 mm (0.1 in) ports ...