Making informative visualizations (sometimes called plots) is one of the most important tasks in data science.
The horizontal axis shows your data values, where each bar includes a range of values. The vertical axis shows how many points in your data have values in the specified range for the bar.
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The bar char can be horizental:
The bottom and top of the box show the 25th and 75th quantiles, or percentiles. These two quantiles are also called quartiles because each cuts off a quarter (25%) of the data. The length of the box is the difference between these two percentiles and is called the interquartile range (IQR).
The lines that extend from the box are called whiskers. The whiskers represent the expected variation of the data. The whiskers extend 1.5 times the IQR from the top and bottom of the box.
A line graph is a simple way to visually communicate how the a continuous variable change over time. A line graph may also be called a line chart, a trend plot, run chart or a time series plot.
The variable that measures time is plotted on the x-axis. The continuous variable is plotted on the y-axis.