Define unit square idk wut it is

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

What does the relationship between the mean and median reveal about the shape of the data