**TI83F* AppVariable file 03/22/07, 09:49î Ý GLPA06Ý Û nav AEC13267AEFC43F88E67E1C0E88B5B83GLPA06.!GLPA061  base in percent proportionNbase in a percent proportion:ÖThe number to which the percentage is compared.Ö  biased sample]biased sample:ÖA sample in which one or more parts of the population are favored over others. convenience sample_convenience sample:ÖA sample which includes members of the population that are easily accessed. cross products§cross products:ÖThe product of the terms on the diagonals when two ratios are compared.ÖExample: In the proportion 2/3 = 8/12 the cross products areÖ2 12 and 3 8.Ö percent\percent:ÖA ratio that compares a number to 100.ÖExample:Ö76 out of 100 isÖ76 percent or 76%. percent of changeYpercent of change:ÖA ratio that compares the change in a quantity to the original amount. percent of decreasegpercent of decrease:ÖThe ratio of an amount of decrease to the original amount, expressed as a percent. percent of increasegpercent of increase:ÖThe ratio of an amount of increase to the original amount, expressed as a percent.   populationVpopulation:ÖA large group of data from which a sample of statistical data is selected.   proportionUproportion:ÖAn equation of the form a/b = c/d stating that two ratios are equivalent.  ratebrate:ÖThe ratio of two measurements having different units of measure.ÖExample: Ö60 miles per hour  ratio/ratio:ÖA comparison of two numbers by division.  sampleHsample:ÖSome portion of a larger group selected to represent that group.  sample space=sample space:ÖThe list of all possible outcomes for an event. scaleVscale:ÖA ratio or rate between the actual size of an object and the size of its model.  scale drawing`scale drawing:ÖA drawing that is similar to an actual object, but is either enlarged or reduced.  scale factor:scale factor:ÖA scale written as a ratio in simplest form.  scale modelgscale model:ÖA replica of an original object that is too large or too small to be built at actual size. stratified random sampleªstratified random sample:ÖA sample in which the population is first divided into similar, nonoverlapping groups; a simple random sample is then selected from each group.Ö systematic random samplesystematic random sample:ÖA sample in which the items in the sample are selected according to a specified time or item interval.Ö unbiased sampleaunbiased sample:ÖA sample that is selected so that it is representative of the entire population.  unit rate*unit rate:ÖA rate with a denominator of 1. voluntary response sampleUvoluntary response sample:ÖA sample that involves only those who want to participate.Òº