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Statistics - MSN Encarta Simple forms of statistics have been used since the beginning of civilization, when pictorial representations or other symbols were used to record numbers of people, animals, and inanimate objects on skins, slabs, or sticks of wood and the walls of caves. At present, statistics is a reliable means of describing accurately the values of economic, political, social, psychological, biological, and physical data and serves as a tool to correlate and analyze such data. The relative frequency, column (d), is the ratio of the frequency of an interval to the total count; the relative frequency is multiplied by 100 to obtain the percent relative frequency. encarta.msn.com /encyclopedia_761562521/Statistics.html   (1417 words)

Range - Wikipedia, the free encyclopedia Range (statistics), the difference between the highest and lowest value. Range is the distance from a target object such as a hole in golf, an object being tracked by radar, a military target. Range in ranching is found under rangeland and open range. en.wikipedia.org /wiki/Range   (265 words)

Explore: Statistics and Charts   (Site not responding. Last check: 2007-09-09) The interquartile range is the distance between the 25th percentile and the 75th percentile. The interquartile range is the distance between the upper fourth and the lower fourth. Statistics such as the t-test and analysis of variance assume that the distributions of the scores in each of the cells of the design are normally distributed. web.uccs.edu /lbecker/SPSS/explore1.htm   (3108 words)

range (Statistics Toolbox)   (Site not responding. Last check: 2007-09-09) For vectors, range(x) is the range of the elements. For matrices, range(X) is a row vector containing the range of each column of X. The range is an easily calculated estimate of the spread of a sample. The range of a large sample of standard normal random numbers is approximately six. www.tau.ac.il /cc/pages/docs/matlab/help/toolbox/stats/range.html   (101 words)

Statistics - a wide range of military and government information Includes Statistics about crime and victims, law enforcement, courts, and corrections. The statistics found herein refer only to the Hispanic population of the United States; the population of the Commonwealth of Puerto Rico is not included in the data, but Puerto Ricans residing in the United States are included. Prepared by staff members in Population Division and Housing and Household Economic Statistics Division, under the general direction of Janice Valdisera, Population Division of the U.S. Census Bureau. www.hqda.army.mil /library/statistics.htm   (1217 words)

Statistics Glossary - Presenting Data For each group, a rectangle is constructed with a base length equal to the range of values in that specific group, and an area proportional to the number of observations falling into that group. The range of a sample (or a data set) is a measure of the spread or the dispersion of the observations. The range value of a data set is greatly influenced by the presence of just one unusually large or small value in the sample (outlier). www.cas.lancs.ac.uk /glossary_v1.1/presdata.html   (3177 words)

Range image statistics can explain the anomalous perception of length -- Howe and Purves 99 (20): 13184 -- Proceedings ... Statistical relationship between the spatial intervals in the projected images and the corresponding physical intervals in 3D space. 1 indicates that the statistical relationship between projected length and physical length accords with the perceptual variation of apparent line length. Statistical relationship between the luminance boundaries in the projected images and the corresponding physical sources in 3D space. www.pnas.org /cgi/content/full/99/20/13184   (3274 words)

Math Forum - Ask Dr. Math Archives: Middle School Statistics I've seen "relative error" defined both as "the absolute error divided by the true measurement" and "the greatest possible error divided by the measurement itself." These definitions seem to be inconsistent. We are always talking about 'They range in age from, or they range in height, or they range in weight, or they range in size, etc'. The Math Forum is a research and educational enterprise of the Drexel School of Education. mathforum.org /library/drmath/sets/mid_statistics.html   (855 words)

R: Basic descriptive statistics useful for psychometrics There are many summary statistics available in R; this function provides the ones most useful for scale construction and item analysis in classic psychometrics. Range is most useful for the first pass in a data set, to check for coding errors. The range statistics (min, max, range) are most useful for data checking to detect coding errors, and should be found in early analyses of the data. personality-project.org /r/html/describe.html   (178 words)

Statistics Statistical Mean or Average - 1 digit numbers Statistical Mean or Average - 2 digit numbers Statistical Mean or Average - 3 digit numbers www.aaamath.com /B/sta.htm   (24 words)

Industry Statistics   (Site not responding. Last check: 2007-09-09) Statistics on current oil prices or historical trends in the oil and gas industry can be found in numerous places. Some statistics are available free of charge; others may require purchase to obtain details or history. They compile a wide range of statistics on all energy sources within the U.S. — oil, natural gas, coal, electric power, and renewable energy. www.spe.org /spe/jsp/basic/0,,1104_1718,00.html   (911 words)

Range (statistics) - Wikipedia, the free encyclopedia In descriptive statistics, the range is the length of the smallest interval which contains all the data. The range, in the sense of the difference between the highest and the lowest scores is also called the crude range. Of course this range should not be chosen too small, in order to avoid a ceiling effect. en.wikipedia.org /wiki/Range_(statistics)   (214 words)

Open Directory - Science: Math: Statistics: Software DAG_Stat - Diagnostic and Agreement Statistics - Excel spreadsheet; calculates wide range of statistics (and confidence intervals) for assessing performance of diagnostic tests and inter-rater reliability of dichotomous ratings. Statistical and Data Analysis - Performs from basic data manipulations to the advanced statistical analyses, reports and charts. Statistics Toolbox for MATLAB - Provides functions and interactive tools for analyzing historical data, modeling data, simulating systems, developing statistical algorithms, and learning and teaching statistics. dmoz.org /Science/Math/Statistics/Software   (2234 words)

CRAN Task View: Multivariate Statistics Application-specific uses of multivariate statistics are described in relevant task views, for example whilst principal components are listed here, ordination is covered in the Environmetrics task view. Graphical Procedures: A range of base graphics and lattice functions are useful for visualising pairwise arrays of 2-dimensional scatterplots, clouds and 3-dimensional densities. A range of established clustering and visualisation techniques are also available in cluster. cran.r-project.org /src/contrib/Views/Multivariate.html   (1684 words)

Federal Statistics Online, via OSU Library Documents Dept. Easy access to the full range of statistics and information produced by more than 70 federal agencies for public use. Bureau of Justice Statistics, U.S. Statistics about crimes and victims, drugs and crime, criminal offenders, law enforcement, prosecution, courts and sentencing, corrections, expenditure and employment, criminal record systems, and other topics. National Center for Education Statistics, U.S. See Education At A Glance for indicators and tables in five major NCES publications, major compendia (Digest of Education Statistics, Condition of Education), Projections, Special Topic Summaries and a Subject Index. www.library.okstate.edu /govdocs/stats.htm   (734 words)

Mean, Median, Mode and Range The goal of this unit is to introduce the concepts of mean, median, mode and range. You may use the free demo lessons below in accordance with our Terms and Conditions. To find the range of a set of data. www.mathgoodies.com /lessons/toc_vol8.html   (283 words)

West Virginia Health Statistics Center In addition to major publications like the annual Vital Statistics and Behavioral Risk Factor Surveillance Survey, the HSC has begun publishing a series of statistical "Briefs "on various health-related topics. The West Virginia County Health Profiles 2004 cover a broad range of statistics and compare West Virginia and county statistics to United States statistics. The Statistics and Trivia page will give you a quick overview of state statistics and also includes links to outside sources like the U.S. Census Bureau and the Behavioral Risk Factor Surveillance System. www.wvdhhr.org /bph/oehp/hsc/default.htm   (340 words)

U.S. Department of Labor - Find It By Topic - Statistics - Employment and Unemployment The Bureau of Labor Statistics (BLS) provides a broad range of statistics covering jobs and joblessness. A monthly survey of households that provides a comprehensive body of data on the labor force, employment, unemployment, and persons not in the labor force. FedStats.gov provides access to virtually all statistical information available to the public from the federal government. www.dol.gov /dol/topic/statistics/employment.htm   (248 words)

National Center for Health Statistics The National Center for Health Statistics collects a wide range of statistics on marriage, divorce, families, health, and mortality. Mortality statistics in the US are classified using the International Classification of Diseases categories. Data from NCHS are available to the public in a number of individual reports and publication series, special tabulations, data releases, and through electronic media including data diskettes, CD-ROM, and an extensive set of public-use data tapes. www.ngdc.noaa.gov /seg/hazard/resource/soc/health.html   (275 words)

NPWRC :: A Comparison of Home Range Statistics The northern woodland caribou ecotype (Rangifer tarandus caribou) has received relatively little management or research attention, but is thought to be increasingly threatened by expanding forestry practices in central and northern British Columbia. One of the limitations of studying animals with relatively large ranges is acquiring accurate and representative location data. Home range statistics will be calculated and used to compare two GPS data sets sorted by accuracy, and the simulated conventional telemetry data set. www.npwrc.usgs.gov /resource/wildlife/telemtry/caribou.htm   (297 words)

U.S. Government Information: Statistics A handbook of statistical tables extracted from government agencies, professional organizations and commercial publishers. FedStats is a gateway to statistics from the U.S. government. "The National Center for Education Statistics fulfills a Congressional mandate to collect, collate, analyze, and report complete statistics on the condition of American education; conduct and publish reports; and review and report on education activities internationally." Includes Education at a Glance. www2.lib.udel.edu /subj/godc/internet/stat.htm   (542 words)

FAO Statistics Division The Statistics Division sends out four major questionnaires annually to countries to collect statistical data to be included in the FAOSTAT databases. Agricultural production statistics for the 20 most important food and agricultural commodities (ranked by value) in a given country for the year indicated. It also includes statistical reports by country on the progress in reaching the hunger reduction targets established in the World Food Summit (FAO, Rome, 1996) and the Millennium Declaration (UN, New York, 2000). www.fao.org /es/ess   (553 words)

SurfStats Log Analysis and Website Statistics Product Range Our range of products offer you the flexibility to generate web site statistics reports for yourself, your customers or to allow your customers to generate reports on-demand for themselves, on-line, without you playing a part in the report generation process. The Enterprise Edition was targeted at larger organizations who had a need to analyze log files generated by proxy servers, firewalls and streaming media servers. Other vendors of log analyzer software normally market their proxy/firewall/streaming media analysis products as separate products from their web log analysis products or only specializes in the analysis of one of the log file type categories. www.surfstats.com /productrange.asp   (484 words)

Federal Statistics All of the information included in the Economic Statistics Briefing Room is maintained and updated by the statistical units of those agencies. All of the information included in the Social Statistics Briefing Room is maintained and updated by the statistical units of those agencies. A full range of statistics and information produced by Federal agencies for public use. whitehouse.gov /news/fsbr.html   (158 words)

SafeYouth.org - Violence Prevention Topics - Statistics NCJRS is a a federally sponsored information clearinghouse for people around the country and the world involved with research, policy, and practice related to criminal and juvenile justice and drug control. The National Center for Health Statistics (NCHS) collects data on vital events as well as information on health status, lifestyle and exposure to unhealthy influences, the onset and diagnosis of illness and disability, and the use of healthcare by all age groups. The vital statistics general mortality data are a fundamental source of demographic, geographic, and cause-of-death information. www.safeyouth.org /scripts/topics/statistics.asp   (609 words)

CSU Libraries: statistics Updated annually, it has a broad range of statistics on many topics. See some useful Reference books that have statistics on general as well as social issues; these may be helpful for many topics. For a broad range of statistics, use the following three sources. manta.library.colostate.edu /howto/others/statsoth.html   (220 words)

Internet Public Library: Statistics Statistics include number of establishments, payroll (annual and 1st quarter), number of employees, and number of establishments by size class for 2 digit SIC industry groupings. Most helpful are the current interest rate statistics, some of which are released almost daily, others monthly or quarterly. All of the information included in the Social Statistics Briefing Room is maintained and updated by the statistical units of those agencies." Includes crime, demographic, education and health statistics. www.ipl.org /div/subject/browse/bus82.00.00   (1020 words)

Buffalo Range statistics If you think it should be possible for big-boards to update these statistics, please drop us an email so we can see what can be worked out. The statistics presented on these graphs are generated from the information collected by our engine on the site "Buffalo Range". These statistics are only presented to give an idea of the evolution of these message boards information in time, but may not be completely accurate, depending on the availability of the site's server when it was visited by our robot, and of course on the validity of the information present on the site. www.big-boards.com /board/914   (364 words)

STATISTICS The official government site for statistics provides access to a wide range of statistics concerning Australia and its States and Territories. The National Center for Education Statistics (NCES) is the primary federal entity for collecting and analyzing data related to education in the United States and other nations. The 1996 Statistical Abstract is a collection of over 1400 tables and graphs on social, economic, and international subjects. www.virtualref.com /subj/101.htm   (554 words)

Descriptive Statistics - Histogram - Range BBC education correspondent Mike Baker examines new figures which show a dramatic decline in the number of adult learners. Intelligent children are more likely to become vegetarians later in life, a study says. Under no circumstances and under no legal theory shall ORDE be liable to you or any other person for any direct, indirect, special, incidental, exemplary, or consequential damages arising from your access to, or use of, this web site. www.xycoon.com /range.htm   (727 words)

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