5 Written questions
5 Multiple choice questions
- 75/100 * N
- is a possible contributing cause in a clinical study or trial that
could produce the same effect as the variable under investigation. A good clinical study or trial attempts to eliminate confounding variables using a control group.
- is an alternative to a census, in which data is collected from only some members of the population.
- is a sampling method which uses random or probabilistic selection as part of its design.
5 True/False questions
outlier → is an extreme data point that does not t into the overall pattern of the rest of the data.
capture-recapture → Max-min
double-blind study → is one of the contributing factors to sampling error. It is the result of choosing a bad sample. Good methods of sample selection minimize sample bias.
mean → 75/100 * N
simple random sampling → is a sampling method which uses random or probabilistic selection as part of its design.