Observations on all Births (23,970) in Birmingham, 1947: I. Duration of Gestation

Abstract

Birth weight is included in Tables II and III because we later make use of information about weight in examining the randomness of data available on duration of gestation. t B1 is a measure of skewness; B2 is a measure of kurtosis. In the normal distribution B1=O; B2=3 0.