A data point is an outlier when: * 1 point O it is far away from the best pattern or trend O removing the point increases the strength of the correlation O the point doesn't have any particular special relevance in that set of data O all of the above O none of the above When there is intentional bias in the sampling process: * 1 point O every member of the population has an equal chance of being selected O the data set is always unreliable O methodology of the survey is unethical O all of the above O none of the above