Statistics Vocabulary

Front

To find the _________ you add up all the numbers and then divide by how many numbers you have.

Back

Mean: The average of a set of numbers, calculated by adding them all together and dividing by the count of numbers.

Front

Values that divide a data set into four equal parts.

Back

Quartiles: Values that split a data set into four equal parts, with each part representing 25% of the data.

Front

-bar graph of data intervals

Back

Histogram: A graphical representation of the distribution of numerical data, using bars to show the frequency of data intervals.

Front

-range of numbers

Back

Interval: A range of values that can be used to describe the distance between two points.

Front

-science of collecting and analyzing data

Back

Statistics: The branch of mathematics that deals with collecting, analyzing, interpreting, presenting, and organizing data.

Front

The middle value in a data set when arranged in order.

Back

Median: The value that separates the higher half from the lower half of a data set.

Front

The most frequently occurring value in a data set.

Back

Mode: The value that appears most often in a data set.

Front

The difference between the highest and lowest values in a data set.

Back

Range: The measure of how spread out the values in a data set are, calculated as the difference between the maximum and minimum values.

Front

A value that is significantly higher or lower than the rest of the data points.

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Outlier: A data point that differs significantly from other observations in a data set.

Front

A visual representation of data using dots to show frequency.

Back

Dot Plot: A simple graphical display of data using dots to represent the frequency of values.