The floorplan of your school is a perfect square with sides that measure 400 feet. How long is a diagonal hallway that goes across your school from corner to corner?

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample