Sample Size Calculator This free sample size calculator determines the sample size required to meet a given set of constraints. Also, learn more about population standard deviation.
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NYTimes: This Surveillance Artist Knows How You Got That Perfect Instagram Photo A tech-savvy artist unearthed video footage of people working hard to capture the perfect shot for Instagram. It is a lesson in the artifice of social media and the ubiquity of surveillance.
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Everyone’s a Landlord—Small-Time Investors Snap Up Out-of-State Properties With the help of recent technologies, laptop landlords are buying homes across the U.S., and lower-cost Southern cities have been especially popular. As a result, even small housing markets have grown less local.
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