...conducted by the Bureau of the Census. (See text, p. 1.) Because the data are derived from a probability sample, they may differ from the figures that would have been obtained if it were possible to take a complete census 213 using the same questionnaire and procedures. Thus,...

...because of these exclusions, the age limitation, and other minor differences in measurement. Since the estimates are based on a sample, they may differ...between estimates, should be interpreted with caution. This is the 1 1th in a series of articles on this subject. The last article appeared in the June 1969...

...and over in the civilian noninstitutional population in the calendar week ending Oct. 16, 1976. Since the estimates are based on a sample, they may differ...between estimates, should be interpreted with caution. This summary will be reprinted as a special labor force report and will be available upon request to...

...because of these exclusions, the age limitations, and other minor differences in measurement. Since the estimates are based on a sample, they may differ...between estimates, should be interpreted with caution. The most recent report in this series was published in the Monthly Labor Review, May 1971, pp. 33-38,...

...published by the US Office of Education, which are based on the total population and all age groups. Since the estimates are based on a sample, they may differ...between estimates, should be interpreted with caution. The most recent reports in this series were published in the Monthly Labor Review in September 1974,...

...include academic, avocational, and self-improvement courses taken over a year's time. Because the CPS estimates are based on a sample, they may differ from...between estimates, should be interpreted with caution. This summary will be reprinted as a special labor force report and will be available upon request to...

...October 18, 1969. All members of the Armed Forces and inmates of institutions were excluded. Since the estimates are based on a sample, they may differ...may be relatively large in cases where the numbers in each group are small. Small estimates, or small differences between estimates, should be interpreted...

...Nos. 5, 15, 21, 32, 41, 54, and 66, respectively. Since the estimates resulting from this survey are based on a sample, they may differ from the figures...that would have been obtained from a complete census. The sampling variability may be relatively large In cases where the numbers In each group are small....

...Force Reports Nos. 5, 15, and 21, respectively. Since the estimates resulting from this survey are based on a sample, they may differ from the figures...that would have been obtained from a complete census. The sampling variability may be relatively large In cases where the numbers in euch group are small....

...excluded from both the first survey and the followup. Since estimates resulting from this survey are based on a sample, they may differ from the figures...that would have been obtained from a complete census. The sampling variability may be relatively large In cases where the numbers are email. Bemuse of the...