You can see the calculation here.The problem:
Cecile is a nurse and has a 0,25 of working a night shift. In the latest time period there have been 10 cases of death at night time by the nursing home,and a remarkably large number of these have happened while Cecilie has been on duty. 7 of the cases of death have been on her duty. Therefore, an investigation has been started to find out if she has anything to do with these deaths.
Assume in the following that all the deaths are natural and that they have happened at
The right answer should be: 0,004