单项选择题
It is crucial you present statistical information properly and accurately. Familiarize yourself with statistical concepts used for your study, including ________
A、tests (e.g. t-test, Fisher’s test, chi-square test, and multivariate multiple linear regression analysis)
B、parameters (e.g. distribution, mean, median, standard deviation and variance)
C、variables (whether categorical or numeric, discrete of continuous)
D、all of the above