@article{Yang_2017, title={Statistics questions with answers}, volume={5}, url={https://pulmonarychronicles.com/index.php/pulmonarychronicles/article/view/427}, DOI={10.12746/swrccc.v5i21.427}, number={21}, journal={The Southwest Respiratory and Critical Care Chronicles}, author={Yang, Shengping}, year={2017}, month={Oct.}, pages={53-54} }