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The Preliminary SAT/National Merit Scholarship Qualifying Test (PSAT/NMSQT) is a standardized test administered by the College Board and cosponsored by the National Merit Scholarship Corporation (NMSC) in the United States. In the 2018–2019 school year, 2.27 million high school sophomores and 1.74 million high school juniors took the PSAT. [1]
Khan Academy is an American non-profit [3] educational organization created in 2006 by Sal Khan. [1] Its goal is to create a set of online tools that help educate students. [ 4 ] The organization produces short video lessons. [ 5 ]
[2] As of December 2023, the Khan Academy channel on YouTube has 8.17 million subscribers, and its videos have been viewed more than two billion times. [3] In 2012, Khan was named in the annual publication of Time 100. [4] In the same year, he was featured on the cover of Forbes, with the tagline "The $1 Trillion Opportunity." [5]
This ensures that the hypothesis test maintains its specified false positive rate (provided that statistical assumptions are met). [35] The p-value is the probability that a test statistic which is at least as extreme as the one obtained would occur under the null hypothesis. At a significance level of 0.05, a fair coin would be expected to ...
Sanderson graduated from Stanford University in 2015 with a bachelor's degree in mathematics. [8] He worked for Khan Academy from 2015 to 2016 as part of their content fellowship program, producing videos and articles about multivariable calculus, after which he started focusing his full attention on 3Blue1Brown.
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But in 2019, a record-breaking 2.2 million students took the exam, compared to 2.1 million in 2018, another record-breaking year. [41] The rise in the number of students taking the SAT was due in part to many school districts offering to administer the SAT during school days often at no further costs to the students. [ 41 ]
Smarthistory is a free resource for the study of art history created by art historians Beth Harris and Steven Zucker. Smarthistory is an independent not-for-profit organization and the official partner of the Khan Academy for art history.
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