Straighterline Introduction To Statistics|58 Questions And Answers

Four steps in the process of statistics {Ans: } 1. Producing Data 2. Exploratory Data Analysis 3. Probability 4. InferenceCategorical variable {Ans: } places individuals into one of several groups Two types: nominal and ordinalQuantitative Variable {Ans: } represents a measurement or a count Two types: Interval and ratioNominal Variable {Ans: } categorical variables where there is no natural order among the categoriesOrdinal variable {Ans: } categorical variables where there is natural order among the categoriesInterval Variable {Ans: } a measurement or count for which it makes sense to talk about the difference between values, but it does not make sense to talk about the ratio between values; 0 does not represent the absence of quanitityRatio Variable {Ans: } quantitative variables for which it makes sense to talk about the difference between values AND the ratio between values; 0 represents the absence of quantityWhat type of variable?: eye color {Ans: } nominalWhat type of variable?: socioeconomic status with categories low, med, high {Ans: } OrdinalWhat type of variable?: Temperature {Ans: } IntervalWhat type of variable?: Income {Ans: } RatioVisual display and numerical summary for a single categorical variable {Ans: } pie chart or bar chart and category percentagesVisual display and