Please help me with this question:

Question: Refer to the Lincolnville School District bus data. Prepare a report on the maintenance cost for last month. Be sure to answer the following questions in your report. a. Around what values do the data tend to cluster? Specifically what was the mean maintenance cost last month? What is the median cost? Is one measure more representative of the typical cost than the others? b. What is the range of maintenance costs? What is the standard deviation? About 95% of the maintenance costs are between what two values?