Every seven days.
The default no-refresh interval is set to: 7 days.
Generation time has been used synonymously with the term "serial interval." Serial interval is the time from the onset of symptoms in the index case until the onset of symptoms in any secondary cases. For human seasonal influenza, the mean serial interval has been estimated as 3.6 days (95% confidence interval = 2.9-4.3 days) (Cowling BJ et al, Estimation of the Serial Interval of Influenza, Epidemiology 2009; 20(3): 344-7.
Pretty much what it says. Something to be done and repeated after a nine day interval
The confidence interval is not directly related to the mean.
A confidence interval of x% is an interval such that there is an x% probability that the true population mean lies within the interval.
7 Days of the Week
When you're not taking the pill for 7 days your body starts the normal ovulation process. When you extend the hormone free interval (7 days of placebo) for more than a day your body starts the process of ovulation. This doesn't necessarily mean you will ovulate as every woman is different but you should use a back up method with the pill for at least 7 days.
In seven days something will happen
That you do the same action every 7 to 10 days.
It is a fever that recurs after an interval of five days
It is 27 days, 7 hours and 12 minutes.
7 Days to Create the Earth