Chapter 10
Definitions
Biased Sample- A sample that does not fairly represent the population.
Box Plot- A graph that shows how data are distributed by using the median, quartiles, least value, and greatest value.
Interquartile Range- The difference between the upper and lower quartiles in a box plot.
Lower Quartile- the median of the lower half of a set of data.
Median- The middle number, or the mean (average) of the two middle numbers, in an ordered set of data.
Population- The entire group of objects or individuals considered for a survey.
Random Sample- A sample in which each individual or object in the entire population has an equal chance of being selected.
Sample- A part of the population.
Upper Quartile- The median of the upper half of a set of data.
Box Plot- A graph that shows how data are distributed by using the median, quartiles, least value, and greatest value.
Interquartile Range- The difference between the upper and lower quartiles in a box plot.
Lower Quartile- the median of the lower half of a set of data.
Median- The middle number, or the mean (average) of the two middle numbers, in an ordered set of data.
Population- The entire group of objects or individuals considered for a survey.
Random Sample- A sample in which each individual or object in the entire population has an equal chance of being selected.
Sample- A part of the population.
Upper Quartile- The median of the upper half of a set of data.