Statistic Vocabulary 1

A question which can answered by a specific measurement or procedure where no variability is anticipated (one answer).

• Statistical Question

• Non-Statistical Question

A question that can only be answered by using data and where we expect the data to have variability (more than one answer).

• Statistical Question

• Non-Statistical Question

Data where the values are categories (like months, colors, brands, etc.)

• Categorical Data

• Numerical Data

Data where the values are numbers, measurements or quantities (also called measurement or quantitative data)

• Categorical Data

• Numerical Data

A quantity that is calculated from sample data, such as mean, median, MAD (mean absolute deviation)

• Statistic

• Categorical Data

• Numerical Data

Consists of the minimum, Q1, median, Q3, and maximum

• Interquartile Range (IQR)

• Five-Number Summary

Tells you how many of each value or each category there are in the data set

• Distribution

• Statistical Question

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

• Bell-Shaped Distribution

• Bimodal Distribution

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

• Bell-Shaped Distribution

• Skewed Distribution

A distribution which has the values evenly distributed throughout the range of the data

• Uniform Distribution

• Skewed Distribution