Name two variables in a set of data?
Individuals: The individuals in a set of data are the people, objects, or items that the data is collected about. For example, in a survey about student grades, the individuals would be the students. Variables: Variables are the characteristics or qualities of the individuals in the set of data. For example, in a survey about student grades, the variables could include the student's name, age, and grade. Data Set: A data set is a collection of related data elements that are organized in a specific order. A data set can contain individuals and variables. For example, a data set about student grades would include the name, age, and grade of each student.
Data can be organized into categories of nominal, ordinal, interval, and ratio variables. Data can be used to identify trends or relationships between different variables. Data can be represented graphically in a variety of ways, such as bar graphs, line graphs, and scatter plots.
Did you know?
How have you used sets of data in your own life?
How can you use data to draw meaningful conclusions?
Brain break: Draw a banana piloting a rocketship to the moon
Question: You are asked to compile data on the favorite ice cream flavors of students at Charter Oak HS. How would you identify the individuals and variables in the data set? Additional Questions: Is this data quantitative or categorical? How would you go about collecting this data? What meaningful ways can you display this data?
In a survey, which of the following is an example of an individual?
- John Smith
- Favorite Color
In a study measuring the effect of a new drug, what would be considered a variable?
- Blood pressure
Which of the following is an example of a categorical variable?
- Marital status
What are individuals in statistical terms?
- Subjects or objects being studied
- Numbers used for calculations
- Results or outcomes
Which one below belongs to the same group as Age, Height and Weight?
- Categorical variables
- Quantitative variables
- Qualitative variables
Work together in pairs: What are the potential sources of bias in a data set that can affect the accuracy of the results?