The graph of the normal distribution is often called "the bell shape". There are two features we determine in a normal distribution:
* The mean, is located at the maximum value or peak of the graph.
* The standard deviation is viewed as the width of the bell shape. The greater the standard deviation, the wider (or fatter) the graph is.
We can see graphs A and B have their peaks at the same vertical position. This means their means are equal.
We can also see graph B is fatter which means its standard deviation is larger than A's.
The correct selections are shown below:
