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STRAIGHTERLINE INTRODUCTION TO STATISTICS
EXAM 2025 WITH 100% VERIFIED QUESTIONS AND
EXPERT SOLUTIONS| GUARANTEED VALUE AND
SUCCESS.
Four steps in the process of statistics - (answers)1. Producing Data
2. Exploratory Data Analysis
3. Probability
4. Inference
Categorical variable - (answers)places individuals into one of several groups
Two types: nominal and ordinal
Quantitative Variable - (answers)represents a measurement or a count
Two types: Interval and ratio
Nominal Variable - (answers)categorical variables where there is no natural order
among the categories
Ordinal variable - (answers)categorical variables where there is natural order
among the categories
Interval Variable - (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
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Ratio Variable - (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 - (answers)nominal
What type of variable?:
socioeconomic status with categories low, med, high - (answers)Ordinal
What type of variable?:
Temperature - (answers)Interval
What type of variable?:
Income - (answers)Ratio
Visual display and numerical summary for a single categorical variable -
(answers)pie chart or bar chart
and category percentages
Visual display and numerical summary for a single quantitative variable -
(answers)histogram or stemplot
STRAIGHTERLINE INTRODUCTION TO STATISTICS
EXAM 2025 WITH 100% VERIFIED QUESTIONS AND
EXPERT SOLUTIONS| GUARANTEED VALUE AND
SUCCESS.
Four steps in the process of statistics - (answers)1. Producing Data
2. Exploratory Data Analysis
3. Probability
4. Inference
Categorical variable - (answers)places individuals into one of several groups
Two types: nominal and ordinal
Quantitative Variable - (answers)represents a measurement or a count
Two types: Interval and ratio
Nominal Variable - (answers)categorical variables where there is no natural order
among the categories
Ordinal variable - (answers)categorical variables where there is natural order
among the categories
Interval Variable - (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
, 2|Page
Ratio Variable - (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 - (answers)nominal
What type of variable?:
socioeconomic status with categories low, med, high - (answers)Ordinal
What type of variable?:
Temperature - (answers)Interval
What type of variable?:
Income - (answers)Ratio
Visual display and numerical summary for a single categorical variable -
(answers)pie chart or bar chart
and category percentages
Visual display and numerical summary for a single quantitative variable -
(answers)histogram or stemplot
