Podcast
Questions and Answers
What is an example of continuous numerical data?
What is an example of continuous numerical data?
- The number of heads in 20 flips of a coin
- The features of a dichotomous dataset
- The shoe size of a person
- The speed of a car (correct)
Where does structured data usually reside?
Where does structured data usually reside?
- Cloud storage
- NoSQL databases
- Relational databases (RDBMS) (correct)
- Local file systems
What is an example of discrete numerical data?
What is an example of discrete numerical data?
- The heart rate of an individual
- The number of heads in 20 flips of a coin (correct)
- The speed of a car
- The shoe size of a person
What is the special case of categorical data where the features are dichotomous?
What is the special case of categorical data where the features are dichotomous?
What type of data can undertake only a specific set of values representing possible categories?
What type of data can undertake only a specific set of values representing possible categories?
What is an example of structured data?
What is an example of structured data?
Which type of data can only take certain values, such as counts?
Which type of data can only take certain values, such as counts?
What is an example of discrete numerical data?
What is an example of discrete numerical data?
Where does structured data usually reside?
Where does structured data usually reside?
What is a special case of categorical data where the features are dichotomous?
What is a special case of categorical data where the features are dichotomous?
What is an example of continuous numerical data?
What is an example of continuous numerical data?
Where does structured data usually reside?
Where does structured data usually reside?
What is an example of discrete numerical data?
What is an example of discrete numerical data?
What is an example of binary categorical data?
What is an example of binary categorical data?
What type of data can undertake only a specific set of values representing possible categories?
What type of data can undertake only a specific set of values representing possible categories?
Study Notes
Numerical Data Types
- Continuous numerical data represents measurements that can take any value within a range, such as height or weight.
- Discrete numerical data consists of distinct, separate values, exemplified by the number of students in a classroom or the number of sales made.
Structured Data
- Structured data typically resides in databases or data warehouses, formatted as rows and columns, which allows for easy querying and analysis.
- An example of structured data includes relational databases like SQL, where information is categorized and stored in tables.
Categorical Data
- Categorical data is a type of data that can be divided into different categories, with a special case being binary categorical data, where features are dichotomous. For instance, a yes/no or true/false scenario.
- Categorical data can only take specific sets of values representing possible categories, such as gender (male/female) or marital status (single/married).
Summary of Examples
- An example of continuous numerical data could be temperature readings measured in degrees.
- An example of discrete numerical data includes the counts of items sold in a store.
- Binary categorical data examples involve variables such as whether a light switch is on or off.
Value Constraints
- Data types like discrete numerical data can only assume specific values, which makes them suitable for counting occurrences.
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Description
Test your knowledge of data essentials, data analysis, and applications of data science with this quiz. Explore the different forms of data, including structured data, and learn about its types and generation sources.
