IM Algebra I: Unit 1 Vocabulary

Data where the values are categories.

• categorical data

• statistical data

• numerical data

• non-statistical data

A question which can be answered by a specific measurement or procedure where no variability is anticipated. For example, "How high is that building?" or "What period is this?"

• non-statistical question

• statistical question

• numerical data

• categorical data

This, also called measurement or quantitative data, are data where the values are numbers, measurements, or quantities. For example, the weights of 10 different dogs are this kind of data.

• numerical data

• statistical data

• categorical data

• statistics

A question that can only be answered by using data and where we expect the data to have variability. For example, "Who is the most popular musical artist?" or "When do students in your class typically eat dinner?"

• statistical question

• non-statistical question

• hard question

• data-collecting question

This consists of the minimum, the three quartiles, and the maximum. It is often indicated by a box plot.

• five-number summary

• statistical question

• data

• geogebra

For a numerical or categorical data set, this tells you how many of each value or each category there are in the data set.

• distribution

• shape

• data

• bell-shaped

A distribution whose dot plot or histogram takes the form of a bell with most of the data clustered near the center and fewer points farther from the center.

A distribution with two very common data values seen in a dot plot or histogram as distinct peaks.

A distribution where one side of the distribution has more values farther from the bulk of the data than the other side, so that the mean is not equal to the median.

A distribution with a vertical line of symmetry in the center of the graphical representation, so that the mean is equal to the median.