What Is a Bell Curve? A bell curve is a common type of distribution for a variable, also known as the normal distribution. The term "bell curve" originates from the fact that the graph used to ...

Starting with cell D4, the formula is the current day's ... assume returns are normally distributed. Normal distribution, known as the bell curve, assumes more results clustered near the center ...

the bell curve is skewed. A high skew can reflect the presence of outliers or kurtosis. In a right-skewed distribution, there are more high extremes than low ones, pulling the mean to the right.