1.   This indicates an increase in the mean number of quanta released per trial.

2.   The mean number of errors made during each trial was calculated for each group.

3.   By contrast, in patients negative to challenge the mean number of immunoglobulin secreting cells decreased during the challenge period.

4.   Density was expressed as the mean number of cells per unit mucosal area.

5.   Antihistamines have been proven to reduce the mean number of tissues used by victims of the common cold, and also the frequency and violence of their sneezes.

6.   The human mind likes to simplify so that a nice number with lots of zeroes is more pleasant than a mean number that is hard to remember.