One of the most common standardization methods for test scores is to measure how far test scores deviate from the mean in terms of standard deviation. Mathematically, if M and S are the mean and the standard deviation of test scores, a test score of Y will be standardized to (Y-M)/S. For example, if 100 and 5 are the mean and the standard deviation, then a score of 112 will be standardized to (112- 100)5-2.4. Suppose that 6 people take a test. Test scores are 85, 60, 90, 70, 90, 85. What would be the standardized score if the test score is 70? Hint 1) Use these approximates: \\ 150 ~ 12.25 ,