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In statistics, an effect size is a value measuring the strength of the relationship between two variables in a population, or a sample-based estimate of that quantity. It can refer to the value of a statistic calculated from a sample of data, the value of one parameter for a hypothetical population, or to the equation that operationalizes how statistics or parameters lead to the effect size ...
The rise in popularity of touchscreen smartphones and mobile apps distributed via app stores along with rapidly advancing network, mobile processor, and storage technologies led to a convergence where separate mobile phones, organizers, and portable media players were replaced by a smartphone as the single device most people carried.
The Google Play Store had over 82 billion app downloads in 2016 and over 3.5 million apps published in 2017, [5] while after a purge of apps, it is back to over 3 million. [6] It has been the subject of multiple issues concerning security, in which malicious software has been approved and uploaded to the store and downloaded by users, with ...
The second-level digital divide, also referred to as the production gap, describes the gap that separates the consumers of content on the Internet from the producers of content. [129] As the technological digital divide is decreasing between those with access to the Internet and those without, the meaning of the term digital divide is evolving ...
One radian is defined as the angle at the center of a circle in a plane that subtends an arc whose length equals the radius of the circle. [6] More generally, the magnitude in radians of a subtended angle is equal to the ratio of the arc length to the radius of the circle; that is, =, where θ is the magnitude in radians of the subtended angle, s is arc length, and r is radius.
Cruz won with 4.5 million votes (56.4%) to Sadler's 3.2 million (40.6%). Two minor candidates garnered the remaining 3% of the vote. [ 100 ] According to a poll by Cruz's pollster Wilson Perkins Allen Opinion Research, Cruz received 40% of the Hispanic vote, outperforming Republican presidential candidate Mitt Romney among Hispanics in Texas.
Nuclear power's contribution to global energy production was about 4% in 2023. This is a little more than wind power, which provided 3.5% of global energy in 2023. [167] Nuclear power's share of global electricity production has fallen from 16.5% in 1997, in large part because the economics of nuclear power have become more difficult. [168]