Line Plots and Histograms

A histogram is a type of bar graph that represents the frequency distribution of numerical data. It shows how many data points fall within certain ranges (bins).

A line plot is a graph that displays data along a number line, using 'x' marks to show the frequency of each value.

Each 'x' in a line plot represents one occurrence of a value in the data set.

To create a histogram, divide the data into intervals (bins), count how many data points fall into each interval, and then draw bars for each interval with heights corresponding to the counts.

A bar graph displays categorical data with separate bars, while a histogram displays numerical data with bars that touch, representing continuous intervals.

The purpose of a line plot is to show the frequency of data points in a simple and visual way, making it easy to see trends and patterns.

To interpret a histogram, look at the height of the bars to understand the frequency of data points in each interval and identify the distribution shape.

A frequency distribution is a summary of how often each value occurs in a data set, often represented in a table or graph.

The mode is the value that appears most frequently in a data set.

To find the median, arrange the data in numerical order and identify the middle value. If there is an even number of values, average the two middle values.