Corrections
DEC 01, 2020
DOI: 10.1063/PT.3.4627
October 2020, page 40 —In the caption for figure 1, the increase in the number of physics PhDs at US universities over the past 15 years should be 75%.
November 2020, page 28 —Daniel Bernoulli, not David, devised a model to predict the benefits of smallpox inoculations. In box 1, the negative binomial distribution should be
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