Question: 4. (10 points) On a certain standardized test, the mean score is 25, the standard devia- tion of scores is 5, and the scores have

4. (10 points) On a certain standardized test, the mean score is 25, the standard devia- tion of scores is 5, and the scores have a normal distribution shape. a What is the probability that a student will score 20 or less? b Suppose a student scored in the 10th percentile. What is their corresponding test score

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