ROAD SIGNS Roadway signs such as the one shown are used to warn
drivers of an upcoming steep down
grade. What is the grade, or slope, of
the hill described on the sign?
(8%)

4. jake needs to score in the top 10% in order to earn a physical fitness certificate. the class mean is 78 and the standard deviation is 5.5. what raw score does he need? z value for top 10% =1.282 how do i get the z value? what is the equation for this? raw score =mean+z*sd = 78+1.282*5.5 = 85.051