Assertion: sample's mean | /r/HasProperty | no difference
Facets:
value: in population proportions
type: OTHER
value: in the rate
type: OTHER
Source sentences:
text: If there is no difference in the rate that serious health problems occur, the mean is 0.
text: The mean of each sampling distribution of individual proportions is the population proportion, so the mean of the sampling distribution of differences is the difference in population proportions.