Variation in Weaning Weight
We have examined the variation in
individual pig weaning weight from
several groups of pigs and have found
that the standard deviation of individual
pig weight is consistently close to 2
pounds. Also, the distribution of pig
weights at weaning commonly approximates
a normal distribution or the classic
bell-shaped curve. Therefore, weight of
68 percent of the pigs will be within one
standard deviation of the mean, weight
of 28 percent of the pigs will be within
one and two standard deviations,