The data collected does not have to be measurable.
In continuous grouped data the data is collected continuously and in groups. Data collected is in class intervals the actual data values are not visible.
how is data collected and used for the purpose of national statistics
Primary data is the the data that collected by yourself. While secondary data is those collected by others and to be reused by yourself.
Primary data is data that is collected by the researcher. Secondary data is information that has been collected by someone other than the user.
Data collected from only one variable.
Controlled
Dependent variable
dependent variable
dependent variable
Dependent Variable: - Something that might be effected by the change in the independent variable - What is observed - What is measured - The data collected during the investigation :)
Controlled
class midpoints can be computed
The data collected in an experiment test a hypothesis. A hypothesis is an educated guess about a specific question, usually regarding science.
highly variable and collected over short periods of time
I'm guessing that first you must during the experiment collect the data that you observed, then collect this data and organize it independent and dependent variable (The x-axis is the independent variable and the y-axis is the dependentvariable).
Any kind of data can be collected.