A health advocacy organization is trying to isolate the sources of health problem in Bogor City. Some debates focus on how health problem is related to income (of residents) and to frequency of city garbage collection. The accompanying three tables display number of neighborhoods in Bogor city according to frequency of reports on health problem and average income of residents (low or high) (Table 1), and number of neighborhoods in Bogor city according to frequency of reports on health problem and average income of residents (low or high) for frequency of city garbage collection (once per week) (Table 2) and for frequency of city garbage collection (twice per week) (Table 3).

Table 1. Number of neighborhoods by frequency of reports on health problem and average income of residents Frequency of Average Income Reports on Health ' Total Problem LOW High Low 93 170 263 High 137 110 247 Total 230 280 510 Table 2. As Table 1 but for Garbage Collection Once per Week Garbage Collection Once per Week Table 3. As for Table 1 but for Garbage Collection Twice per Week Garbage Collection Twice per Week Frequency of Average Income Frequency of Average Income Reports on . Total Reports on ' Total Health Problem LBW H1811 Health Problem LOW High Low 20 5 25 Low 73 165 238 High 51 7 58 High 86 103 189 Total 71 12 83 Total 159 268 427