End of Year Review BEST Math

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What is probability?

Back

Probability is a measure of the likelihood that an event will occur, expressed as a number between 0 (impossible) and 1 (certain).

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What is the formula for calculating probability?

Back

Probability = (Number of favorable outcomes) / (Total number of outcomes).

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What does it mean for two events to be independent in probability?

Back

Two events are independent if the occurrence of one does not affect the occurrence of the other.

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What is a linear equation?

Back

A linear equation is an equation that makes a straight line when graphed. It can be written in the form y = mx + b.

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What does it mean for a graph to pass through the origin?

Back

A graph passes through the origin if the point (0,0) is on the graph, indicating that when the input is zero, the output is also zero.

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What is a proportional relationship?

Back

A proportional relationship is one where two quantities maintain a constant ratio, and the graph of the relationship is a straight line that passes through the origin.

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What does it mean if a graph does not represent a proportional relationship?

Back

It means that the graph does not pass through the origin, indicating that the ratio between the two variables is not constant.

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What is the slope of a line in a linear equation?

Back

The slope is the ratio of the rise (change in y) to the run (change in x) between two points on the line.