Kurtosis Formula What is normal # and what's it called. How much over standard is excessive and what does it look like? Over is called, and description. Under is called.
Sum of (1/n)*((Xi-Mean)^4/S^4). Normal is 3 Over 1 is excessive. Under is called Platykurtik less peaked thinner tail. Leptokurtic is over has fat tail more peaked. Mesokurtic is normal.