Exercise 5

Use the following table is the cost of purchasing a car at a local dealership. Some of the cars sold were new and some were used.

1. Calculate find the mean, including units.

2. Can you figure out how to find the median using the frequency table? See if you can do it without listing out all the data values.

3. Based on the mean and the median, would you expect the distribution to be symmetric skewed left or skewed right? Explain.

   Cost (Thousands of dollars)	Frequency
   15	3
   20	7
   25	10
   30	15
   35	13
   40	11
   45	9
   50	7