Siteadmin, Check users, nsTeam1RO, nsTeam1RW, nsTeam1_talkRO, nsTeam1_talkRW, oversight, Administrators
30,650
edits
Changes
Jump to navigation
Jump to search
Line 1:
Line 1: + +
just getting started - join in and help!
'''Statistical sampling''' is the process of finding a representative portion of a large [[population (statistics)|population]]. In [[quality control]], a percentage of products will be selected at random for testing, and the results ''extrapolated'' to the whole. For example, out of 100,000 cars produced, 5 will be crash-tested. The results will be assumed to hold for the cars actually sold.
'''Statistical sampling''' is the process of finding a representative portion of a large [[population (statistics)|population]]. In [[quality control]], a percentage of products will be selected at random for testing, and the results ''extrapolated'' to the whole. For example, out of 100,000 cars produced, 5 will be crash-tested. The results will be assumed to hold for the cars actually sold.
In [[public opinion]] polls, the people who are contacted must be carefully selected to avoid several kinds of [[selection bias]].