what are the limitations of the bell curve 
although the bell curve is a very useful statistical concept its applications in finance can be limited because financial phenomena such as expected stock market returns do not fall neatly within a normal distribution therefore relying too heavily on a bell curve when making predictions about these events can lead to unreliable results although most analysts are well aware of this limitation it is relatively difficult to overcome this shortcoming because it is often unclear which statistical distribution to use as an alternative 