#3 RL (23): Graphs (line plots)

Front

What is a line plot?

Back

A line plot is a type of graph that displays data along a number line, showing the frequency of data points above each value.

Front

How do you interpret a line plot?

Back

To interpret a line plot, count the number of marks above each value to determine the frequency of that value in the data set.

Front

What is the purpose of using line plots in data representation?

Back

Line plots are used to visually represent the distribution of data points, making it easier to identify trends, frequencies, and outliers.

Front

How can you determine the total number of items represented in a line plot?

Back

To determine the total number of items, sum the frequencies of all the data points represented in the line plot.

Front

What does it mean if a line plot has a peak?

Back

A peak in a line plot indicates the value with the highest frequency, showing that it is the most common or popular value in the data set.

Front

How do you find the median from a line plot?

Back

To find the median, arrange the data points in order and locate the middle value, or the average of the two middle values if there is an even number of data points.

Front

What is the difference between a line plot and a bar graph?

Back

A line plot displays data points along a number line, while a bar graph uses rectangular bars to represent the frequency of categories.

Front

How can you use a line plot to answer questions about data?

Back

You can use a line plot to quickly assess frequencies, identify trends, and answer specific questions about the data, such as how many items fall within a certain range.

Front

What is the significance of the x-axis in a line plot?

Back

The x-axis in a line plot represents the values of the data being measured, while the marks above each value indicate the frequency of those values.

Front

How do you create a line plot from a data set?

Back

To create a line plot, first list the unique values from the data set on a number line, then place a mark above each value for each occurrence in the data.