Suppose the scores of a certain certain high school diploma test follow a normal distribution in the population with a mean of 195 and standard deviation of 30.
Using the 68-95-99 rule, answer Questions 9-16.
About ______ percent of the students have a score between 165 and 225.
Note: If your answer is 12.3%, then just put "12.3" in the blank. Use the same format for the rest of the questions.