For a certain standardized placement test, it was found that the scores were normally distributed, with a mean of 170 and a standard deviation of 20. Suppose that this test is given to 1000 students. (Recall that 34% of z-scores lie between 0 and 1, 13.5% lie between 1 and 2, and 2.5% are greater than 2.) How many are expected to score above 210?
(It is not 160, 250, 477, or 47.7, because I already got those and they were wrong)