Scores on a standardized exam are normally distributed with a mean of 504 and a standard deviation of 56 . The figure below shows the distribution of the scores on a standardized exam. Calculate the s

Scores on a standardized exam are normally distributed with a mean of 504 and a standard deviation of 56 . The figure below shows the distribution of the scores on a standardized exam. Calculate the shaded area under the curve. Express your answer in decimal form with at least two decimal place accuracy.