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Basic Statistics Defintions
|A fraction that divides two quantities.
|A ratio that reflects soem quantity per a certain unit.
|A number between 0 and 100 that reflects a proportion of the whole.
|The number of respondents divided by the number of surveys sent out.
|The entire process involved in gathering evidence to answer questions about the world, in cases where that evidence is numerical data.
|Group of individuals that one wishes to study in order to answer a research question.
|A small number of individuals selected from the population that are studied and that information is used to draw conclusions about the whole population.
|Every member of the population is given an equal chance of being selelcted.
|Systematic favoritism that is present in the data collection process resulting inmisleading results.
|Actual measurements that are gained through a study; either numerical or categorical.
|Data that has meaning as a measurement; also known as quantitative data.
|Data that represents characteristics; also known as qualitative data.
|The collection of data taken from a sample.
|A number that summarizes the data collected from a sample.
|Data collected from the entire population.
|A single number that summarizes all the of the census information.
|The sum of all of the numbers divided by the total number of numbers.
|very large or very small values in the data set that are not typical.
|The point at which there are an equal number of data points whose values lie above and below the median value.
|The average distance from the mean.
|The percentage of values in the data set that fall below the certain score.
|How an individual data value compares to the rest of the group.
|The number of standard deviations above or below the mean.
|The most common type of data distribution in which most of the data is centered around the average in a big group.
|Describes the data that follow a bell-shaped pattern.
|A study that imposes a certain amount of control on the study's subjects and theri enviroment.
|A measurement tool that is most often used to gather people's opinions.
|Margin of Error
|Measures the maximum amount by which the sample results are expected to differ from those of the actual population.
|Measurement of likelihood of an event happening.
|Statistical procedure in which daya are collected and measured against a claim about a population.
|Two numerical variables have a linear relationship.