...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,...

...may differ from figures of the Office of Education because of these exclusions, the age limitations, and other minor differences in measurement. Since...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...between estimates, should be interpreted with caution. The most recent reports in this series were published in the Monthly Labor Review in September 1974,...

...population 16 years old and over (unless otherwise specified) in the week ending Mar. 15, 1975. Because the estimates are based on a sample, they may differ...between estimates, should be interpreted with caution. Data for all persons other than whites are used to represent data for Negroes, because the latter constitute...

...ending 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...may be relatively large in cases where the numbers in each group are small. Small estimates, or small differences between estimates, should be interpreted...

...years of age in the civilian noninstitutional population in the calendar week ending Oct. 16, 1976. Sampling variability may be relatively large in cases...between estimates, should be interpreted with caution. The most recent report in this series was published in the Monthly Labor Review in June 1976 and reprinted...

...population in the calendar week ending Oct. 14, 1978. Data on family income is as of October 1977. Sampling variability may be relatively large in cases...between estimates, should be interpreted with caution. The most recent report in this series was published in the Monthly Labor Review in June 1978 (pp. 44-47)...

...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....

...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...

...Force* and Inmates of Institutions are excluded. 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 are small. Because of the...