On a particular road map, 1/2 inch represents 18 miles. About how many miles apart are 2 towns that are
2 1/2 inches apart on this map?

On a test the graders have a mean of 77 and a standard deviation of 8. if we can approximate the distribution of these graders by a number distribution what percent of the students. a) scores higher than 77? b) should pass the test (grades > 60)? c) should fail the test (grades < 60)?