A sample of eight college students revealed they owned the following number of CDs.
52, 76, 64, 79, 80, 74, 66, 69
a. What is the mean number of CDs owned?
b. What is the median number of CDs owned?
c. What is the 40th percentile?
d. What is the range of the number of CDs owned?
e. What is the standard deviation of the number of CDs owned?