Podcast
Questions and Answers
A car manufacturer tracks customer satisfaction using a scale of 'Very Unsatisfied', 'Unsatisfied', 'Neutral', 'Satisfied', and 'Very Satisfied'. Which scale of measurement is being used?
A car manufacturer tracks customer satisfaction using a scale of 'Very Unsatisfied', 'Unsatisfied', 'Neutral', 'Satisfied', and 'Very Satisfied'. Which scale of measurement is being used?
- Interval
- Nominal
- Ordinal (correct)
- Ratio
A researcher records the daily high temperature in Celsius for a city over a year. This data is an example of what type of data?
A researcher records the daily high temperature in Celsius for a city over a year. This data is an example of what type of data?
- Nominal
- Cross-sectional
- Time series (correct)
- Categorical
Which scale of measurement is used when data are labels used to identify an attribute of an element?
Which scale of measurement is used when data are labels used to identify an attribute of an element?
- Interval Scale
- Nominal Scale (correct)
- Ordinal Scale
- Ratio Scale
What type of data is the number of products sold by a company last year?
What type of data is the number of products sold by a company last year?
A survey asks respondents to choose their favorite color from a list including red, blue, green, and yellow. What type of data is collected?
A survey asks respondents to choose their favorite color from a list including red, blue, green, and yellow. What type of data is collected?
What distinguishes the ratio scale from the interval scale?
What distinguishes the ratio scale from the interval scale?
What is the purpose of statistical inference?
What is the purpose of statistical inference?
In a cumulative relative frequency distribution, what does the value for a particular class represent?
In a cumulative relative frequency distribution, what does the value for a particular class represent?
Flashcards
Categorical Data
Categorical Data
Labels/names identifying element attributes; uses nominal/ordinal scales; may be numeric/non-numeric.
Categorical Variable
Categorical Variable
A variable that holds categorical data.
Cross-Sectional Data
Cross-Sectional Data
Data collected at one point in time.
Data
Data
Signup and view all the flashcards
Descriptive Statistics
Descriptive Statistics
Signup and view all the flashcards
Elements
Elements
Signup and view all the flashcards
Nominal Scale
Nominal Scale
Signup and view all the flashcards
Quantitative Data
Quantitative Data
Signup and view all the flashcards
Study Notes
- Categorical data involves labels or names to identify element attributes, using nominal or ordinal scales and can be nonnumeric or numeric.
- Categorical variable is a variable that holds categorical data.
- Cross-sectional data are data collected at a single or similar point in time.
- Data are facts and figures that are collected, analyzed, and summarized for presentation and interpretation.
- Descriptive statistics are summaries of data in tabular, graphical, or numerical forms.
- Elements are the entities from which data are collected.
- Nominal scale is a measurement scale where data are labels or names identifying an element's attribute, and can be non-numeric or numeric.
- Observation is the set of measurements gathered for a specific element.
- Ordinal scale is a measurement scale where data have nominal properties and the order or rank of the data is meaningful; data may be nonnumeric or numeric.
- Quantitative data are numeric values showing how much or how many of something, using interval or ratio scales.
- Quantitative variable is a variable that contains quantitative data.
- Ratio scale is a measurement scale with all interval data properties where the ratio of two values is meaningful, and the data are always numerical.
- Statistical inference is the process of using sample data to estimate or test hypotheses about a population's characteristics.
- Time series data are data collected over multiple time periods.
- Variable is a characteristic of interest for the elements.
- Cumulative frequency distribution is a table that summarizes quantitative data by showing the number of data values less than or equal to the upper-class limit of each class.
- Cumulative percent frequency distribution is a table that summarizes quantitative data by showing the percentage of data values less than or equal to each class's upper limit.
- Cumulative relative frequency distribution is a table that summarizes quantitative data by showing the fraction or proportion of data values less than or equal to the upper class limit of each class.
- Frequency distribution is a table that summarizes data by showing the number (frequency) of observations in nonoverlapping categories or classes.
- Percent frequency distribution is a table that summarizes data by showing the percentage of observations in nonoverlapping classes.
- Relative frequency distribution is a table showing the fraction or proportion of observations in nonoverlapping categories or classes.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
