We could also measure heights or weights and see similar bell-shaped curves. In the next section, we will look at specifics regarding to the data that is collected with normal distributions. The 68-95-99 Rule The 68-95-99 rule tells us how the data in a normal distribution will ...
or “bell curve,” is aprobability distributionthat issymmetricabout its center:half of data falls to the left of themean(average) and half falls to the right. The bulk of data are clustered around the central mean, which results in a bell-shaped curve when graphed. ...