The Basics
This is the collection of facts, figures, and observations that are gathered from a study.
What is Data?
This type of data consists of numbers that represent measurements or counts.
What is Quantitative data?
This term refers to the way we classify and categorize data, from least to most informative.
What are Levels of measurement?
This is a numerical value calculated from a sample, such as the average height of students in a classroom.
What is a Statistic?
These are the people, animals, or objects in a study from whom data is collected.
What are Individuals?
Data that has not been organized or processed is called this, while data organized into a table or list is this.
What is Raw data and Array data?
The two lowest levels of measurement, one for categories without a natural order and one for categories that can be ranked.
What are the Nominal scale and the Ordinal scale?
This branch of statistics summarizes and organizes data, while its counterpart uses that data to make predictions and generalizations about a population.
What are Descriptive statistics and Inferential statistics?
This is a numerical value that describes a sample, while its counterpart describes an entire population.
What is a Statistic? (And a Parameter is the counterpart).
This type of variable can take on any value within a range, while its counterpart can only be a whole number.
What is a Continuous variable and a Discrete variable?
This level of measurement has ordered values and equal intervals between them, but no true zero point. A classic example is temperature in Celsius or Fahrenheit.
What is the Interval scale?
The number of pets a family owns is an example of this type of variable.
What is a Discrete variable?
This is the branch of math that deals with the collection, analysis, interpretation, and presentation of data.
What is Statistics?
In an experiment, this variable is manipulated by the researcher, while this other variable is measured to see the effect.
What are the Independent variable and the Dependent variable?
This is the highest level of measurement, with all the properties of the others plus a true zero point. Weight and height are good examples.
What is the Ratio scale?
A variable measured on this scale allows you to say that one value is "twice as much" as another.
What is the Ratio scale?