Useful tips for everyday
How do you tell the difference between t test and Z test? Z Test is the statistical hypothesis which is used in order to determine…
Is machine learning a hard skill? Reason #2: The skills and knowledge to perform a “hard skill” task may end up being performed by a…
Is Random Forest unbiased? Features of Random Forests It runs efficiently on large data bases. It can handle thousands of input variables without variable deletion.…
How do you calculate age-standardized mortality rate? Add all the age- and sex- specific expected deaths to get the expected number of deaths for the…
What does density on Y-axis mean? The unit on the y-axis of the density curve is not percentage, it is density. Density values can be…
How do you find the standard deviation for grouped and ungrouped data? The procedure for calculating the variance and standard deviation for ungrouped data is…
How would you compare the dispersion of three data sets? Variance: Deduct the mean from each data in the set then squaring each of them…
How is the coefficient of correlation interpreted? A positive correlation coefficient indicates that an increase in the first variable would correspond to an increase in…
Does smaller p-value mean more significant? The level of statistical significance is often expressed as a p-value between 0 and 1. The smaller the p-value,…
How do I run a Mantel test in R? To perform a Mantel test in R. First load/install the required packages….The mantel command requires the…