Consider the data set {9,9, 7, 1, 4}. What is the median for this set? Round your answer to the nearest hundredth.

First of all arrange the data set in ascending order (from smallest to largest)

{1,4,7,9,9}     , for the given data number of observations is 5 ( number of term is 5). Thus take n = 5 and n is odd. 

If n is odd median is = [(n+1)/2]^th term                                                                     = [(5+1)/2]^th term                                                                     = [6/2]^th term                                                                            = 3^rd term