Data and Statistic Vocabulary

The following symbol represents what?

• the sample mean

• the population mean

• the sample standard deviation

• the population standard deviation

• the sample size

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

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

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

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

• Bimodal Distribution

• Skewed Distribution

The number in a set of numbers that occurs the most often.

• Median

• Mode

Is the number that is in the middle of a set of numbers.

• Mode

• Median