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### 15 Cards in this Set

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 What is Categorical? the data is in categories What is Quantitative? the data can be measured or counted What is Discrete? has no decimals, shoe size etc. What is Continuous? can have decimals, height etc. What are the three methods of selecting a sample? Random Sample Stratified Sample Systematic Sample What is a Random sample? Chance is the only factor What is a Stratified Sample? chosen in proportion to the entire population What is a Systematic Sample? A system is in place to choose who is in the sample What is the differance Between a Census and a Sample? A Census is the entire Population, a sample is a selected group of the population. In a histogram what is shown on the vertical and horizontal Axis? Vertical axis displays frequency Horizontal axis displays class intervals (height, income, etc.) How is a bar chart differant from a histogram? a bar chart has bar of the same width with equal spaces separating them What are symmetric Distributions? a single peak that trails off to both sides in roughly the same fashion. What is a negitively skewed distribution? data peaks and trails off to the left What is a positivily skewed distribution? data peaks and trails off to the right What are outliers? when a part of the data lays well away from the other data.