Straighterline Introduction to Statistics| 58 questions| with complete solutions

Four steps in the process of statistics CORRECT ANSWERS: 1. Producing Data 2. Exploratory Data Analysis 3. Probability 4. Inference Categorical variable CORRECT ANSWERS: places individuals into one of several groups Two types: nominal and ordinal Quantitative Variable CORRECT ANSWERS: represents a measurement or a count Two types: Interval and ratio Nominal Variable CORRECT ANSWERS: categorical variables where there is no natural order among the categories Ordinal variable CORRECT ANSWERS: categorical variables where there is natural order among the categories Interval Variable CORRECT ANSWERS: 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 quanitity Ratio Variable CORRECT ANSWERS: quantitative variables for which it makes sense to talk about the difference between values AND the ratio between values; 0 represents the absence of quantity What type of variable?: eye color CORRECT ANSWERS: nominal What type of variable?: socioeconomic status with categories low, med, high CORRECT ANSWERS: Ordinal What type of variable?: Temperature CORRECT ANSWERS: Interval What type of variable?: Income CORRECT ANSWERS: Ratio Visual display and numerical summary for a single categorical variable CORRECT ANSWERS: pie chart or bar chart and category percentages