The table below shows the frequency distribution of the observed Nino 3.4 Index (n) in the tropical Pacific Ocean (1952-2012). The bin size rr=0.2, and the number of counts per bin, n; is indicated. Also shown is the probability density function pi. Fill the blank in the probability density column, i.e. compute the probability density associated with a Nino3.4 index between 0 and 0.2 . 0.36 0.01 0.07.