Distribution fitting 16. How many colors are actually in the field?
  A study to compare different methods of estimation was conducted. The goal was to provide an estimate for the number of petal colors existing in the field by using a random sample of Lycoris longituba flowers taken from the field. The study revealed that the estimation from observed sample agrees very well with third order Jackknife method of estimation. 
Lorentz J\"antschi
stat.ME