What are some measures of center and spread that you can find from a dot plot? how can making a dot plot you visualize a data distribution?

A dot plot is one convenient way to organize numerical data. It is a simple display that places a dot above an axis for each datum value. A dot can be represented as X or another symbol. The axis mentioned should cover the entire range of the data, even numbers that will have no data marked above them. Dot plots are especially useful when you are working with a small set of data across a reasonable small range of values.

The measure for center can be reported as median, mean, or the mode. The mode and the median can be directly read from a dot plot. The spread is the specific range of the data. The first and last data point of the axis of a dot plot is the range. 

A dot plot can help you visualize distribution through the dots plotted that will form a shape that is either a symmetrical distribution or a skewed distribution.

The answer is, the streetlight is 18 inches tall.