Big Data+Small Bias

http://marginalrevolution.com/marginalrevolution/2020/01/big-datasmall-bias.html [marginalrevolution.com]

2020-01-15 18:20

Among experts it’s well understood that “big data” doesn’t solve problems of bias. But how much should one trust an estimate from a big but possibly biased data set compared to a much smaller random sample? In Statistical paradises and paradoxes in big data, Xiao-Li Meng provides some answers which are shocking, even to experts.

source: MR