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# check data type for TRNSGNDR variable class(x = brfss.trans.2014$TRNSGNDR) ## [1] "integer" The class was integer, which was not what Leslie was expecting. Leslie knew that this variable had cat- egories and so should be the factor data type in R (Section 1.7). She started ...
Take the difference of each observation from the mean of the given data set. The sum of these differences should be zero or near zero it may be due to the rounding of numbers. Square the values obtained in step 1, which should be greater than or equal to zero, i.e. should be a po...
https://www.classcentral.com/report/mooc-stats-2019/ Adams, S. (2019). Online Education Provider Coursera Is Now Worth More Than $1 Billion. https://www.forbes.com/sites/susanadams/2019/04/25/online-education-provider-coursera-is-now-worth-more-than-1-billion/#5c4c986e30e1 Pappas, C....
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The class imbalance problem The exception proves the rule. Fadel M. Megahed Ying-Ju Chen Martin Krzywinski This Month15 Oct 2021 Nature Methods Survival analysis—time-to-event data and censoring Love’s the only engine of survival.—Leonard Cohen Tanujit Dey Stuart R. Lipsitz Naomi Al...