Ebook the time needed to complete a final examination in a particular college course is normally distributed with a mean of minutes and a standard deviation of minutes. answer the following questions. a. what is the probability of completing the exam in one hour or less (to 4 decimals)

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale