Bell Shaped Histogram Interpretation. For example a large standard deviation creates a bell that is short and wide while a small standard deviation creates a tall and narrow curve. You can use a histogram of the data overlaid with a normal curve to examine the normality of your data.
Skewness tells you the amount and direction of skewdeparture from horizontal symmetry and kurtosis tells you how tall and sharp the central peak is relative to a standard bell curve. Some histograms will show a skewed distribution to the right as shown below. The bell-shaped curve is symmetric around its center.
You can use a histogram of the data overlaid with a normal curve to examine the normality of your data.
It can be shown that variables that arise as a result of the sum or average of a fixed number of individual smaller components of a similar nature will have this shape. Interpretation of Red Blood Cell RBC Histograms The normal red cell distribution curve is Gaussian bell-shaped and the peak of the curve should fall within the normal MCV range of 800 - 1000 fL. For example a large standard deviation creates a bell that is short and wide while a small standard deviation creates a tall and narrow curve. Bell-shaped symmetric distribution a center point is identical to that value at the peak of the distribution.
