Final Algebra 1A Fall

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What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or equal to the other. Examples include <, >, ≤, and ≥.

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What is the median of a data set?

Back

The median is the middle value of a data set when the numbers are arranged in order. If there is an even number of observations, the median is the average of the two middle numbers.

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What is the mean of a data set?

Back

The mean is the average of a data set, calculated by adding all the numbers together and dividing by the total number of values.

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How do you sketch the solution to a system of inequalities?

Back

To sketch the solution, graph each inequality on the same coordinate plane and identify the region where the shaded areas overlap.

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What is a dot plot?

Back

A dot plot is a simple statistical chart that consists of dots plotted above a number line to show the frequency of data points.

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How do you find the range of a data set?

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The range is found by subtracting the smallest value from the largest value in the data set.

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What is the difference between strict and non-strict inequalities?

Back

Strict inequalities (<, >) do not include the boundary point, while non-strict inequalities (≤, ≥) do include the boundary point.