In recent years, due to low interest rates, many homeowners refinanced their home mortgages. Linda Lahey is a mortgage officer at Down River Federal Savings and Loan. Below is the amount refinanced for 20 loans she processed last week. The data are reported in thousands of dollars and arranged from smallest to largest.
59.2
59.5
61.6
65.5
66.6
72.9
74.8
77.3
79.2
83.7
85.6
85.8
86.6
87.0
87.1
90.2
93.3
98.6
100.2
100.7
a. Find the median, first quartile, and third quartile.
b. Find the 26th and 83rd percentiles.
c. Draw a box plot of the data.