The scores on a standardized test for a certain year are

Last updated: 4/11/2023

The scores on a standardized test for a certain year are modeled using the normal distribution shown below The mean of the distribution is 72 4 points and the standard deviation is 5 5 points In the figure V is a number along the axis and is under the highest part of the curve And U and W are numbers along the axis that are each the same distance away from V Use the empirical rule to choose the best value for the percentage of the area under the curve that is shaded and find the values of U V and W 55 60 Percentage of total area shaded Choose one 65 U O 70 Test score 75 W 80 85 90 X S