Each represents how statistical data with normal distribution plots on a graph. Normal distribution describes a particular way statistics deviate from the mean, or center point, of the data ...

For a normal distribution, the data values are symmetrically distributed on either side of the mean. For any normally distributed dataset, plotting graph with stddev on horizontal axis ...

A coin also has a uniform distribution expectation because the odds of getting either heads or tails is the same. A uniform distribution can be visualized as a straight horizontal line.