A histogram is a graphical representation of the distribution of numerical data. It is an estimate of the probability distribution of a continuous variable (quantitative variable).
Every month one measure the amount of weight one's dog has picked up and get these outcomes:
Draw the histogram demonstrating how much is that dog developing.
monthly development vary from -0.2 (the fox lost weight that month) to 1.6. Putting them in order from lowest to highest weight gain.
We decide to put the results into groups of 0.5:
The -0.5 to just below 0 range.
The 0 to just below 0.5 range, etc.
And here is the result:
There are no values from 1 to just below 1.5, but we still show the space.