Line Graphs & Measures of Center

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What is a line graph?

Back

A line graph is a type of chart that displays information as a series of data points called 'markers' connected by straight line segments. It is commonly used to visualize data trends over time.

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What does the y-axis represent in a graph?

Back

The y-axis is the vertical axis in a graph that typically represents the dependent variable or the outcome being measured.

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CCSS.5.G.A.1

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What is the mode in a data set?

Back

The mode is the value that appears most frequently in a data set. A data set may have one mode, more than one mode, or no mode at all.

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CCSS.6.SP.B.5C

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How do you calculate the mean of a data set?

Back

To calculate the mean, add all the numbers in the data set together and then divide by the total number of values.

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CCSS.6.SP.B.5C

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What is the median of a data set?

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

Tags

CCSS.6.SP.B.5C

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What is a measure of center?

Back

Measures of center are statistical values that describe the center point or typical value of a data set, including the mean, median, and mode.

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CCSS.6.SP.A.3

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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 in the data set from the largest value.

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CCSS.6.SP.B.4

CCSS.HSS.ID.A.1

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What does it mean if a data set has no mode?

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If a data set has no mode, it means that no number appears more than once, indicating that all values are unique.

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What is the purpose of labeling axes in a graph?

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Labeling axes in a graph provides context and clarity, helping viewers understand what the data represents and the units of measurement.

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CCSS.2.MD.D.10

Front

How can you interpret trends in a line graph?

Back

Trends in a line graph can be interpreted by observing the direction of the line: an upward slope indicates an increase, a downward slope indicates a decrease, and a flat line indicates no change.