5 Written questions
5 Multiple choice questions
- is a sampling method which uses random or probabilistic selection as part of its design.
- is an alternative to a census, in which data is collected from only some members of the population.
- 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.
- for a data set is the difference between the third quartile and the
first quartile: Q3 Q1.
5 True/False questions
Q3 → 75/100 * N
five-number summary → for a data set consists of the minimum value in the data set
Min, the first quartile Q1, the median M = Q2, the third quartile Q3, and the maximum value Max.
mean → 75/100 * N
range → Max-min
quantitative variable → is a variable which represents a measurable quantity,
one which can be represented by a number.