Problem: Montana has a larger Native American population numerically and percentage-wise than most U.S. states. Although the state ranked 45th in population (according to the 2010 U.S. Census), it ranked 19th in total native people population. Native people constituted 6.5 percent of the state's total population, the sixth highest percentage of all 50 states. Montana has three counties in which Native Americans are a majority: Big Horn, Glacier, and Roosevelt. Other counties with large Native American populations include Blaine, Cascade, Hill, Missoula, and Yellowstone counties. The state's Native American population grew by 27.9 percent between 1980 and 1990 (at a time when Montana's entire population rose just 1.6 percent), and by 18.5 percent between 2000 and 2010. As of 2009, almost two-thirds of Native Americans in the state live in urban areas. Of Montana's 20 largest cities, Polson (15.7 percent), Havre (13.0 percent), Great Falls (5.0 percent), Billings (4.4 percent), and Anaconda (3.1 percent) had the greatest percentage of Native American residents in 2010. Billings (4,619), Great Falls (2,942), Missoula (1,838), Havre (1,210), and Polson (706) have the most Native Americans living there. The state's seven reservations include more than twelve distinct Native American ethnolinguistic groups.
What percentage of the population in Montana are Native peoples?
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Answer: 6.5 percent

Problem: In November 2008, 720p HD support was added. At the time of the 720p launch, the YouTube player was changed from a 4:3 aspect ratio to a widescreen 16:9. With this new feature, YouTube began a switchover to H.264/MPEG-4 AVC as its default video compression format. In November 2009, 1080p HD support was added. In July 2010, YouTube announced that it had launched a range of videos in 4K format, which allows a resolution of up to 40963072 pixels. In June 2015, support for 8K resolution was added, with the videos playing at 76804320 pixels.
What video format support was added in 2009?
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Answer: 1080p HD

Problem: In July 1943, as a result of the American Federation of Musicians boycott of US recording studios, the a cappella vocal group The Song Spinners had a best-seller with "Comin' In On A Wing And A Prayer". In the 1950s several recording groups, notably The Hi-Los and the Four Freshmen, introduced complex jazz harmonies to a cappella performances. The King's Singers are credited with promoting interest in small-group a cappella performances in the 1960s. In 1983 an a cappella group known as The Flying Pickets had a Christmas 'number one' in the UK with a cover of Yazoo's (known in the US as Yaz) "Only You". A cappella music attained renewed prominence from the late 1980s onward, spurred by the success of Top 40 recordings by artists such as The Manhattan Transfer, Bobby McFerrin, Huey Lewis and the News, All-4-One, The Nylons, Backstreet Boys and Boyz II Men.[citation needed]
Who is credited for first introducing elements of Jazz into a cappella?
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Answer:
The Hi-Los and the Four Freshmen