Disasters (vol. 28, 2004) published a study of the effects of a tropical cyclone on the quality of drinking water on a remote pacific island. water samples (size 500 milliliters) were collected approximately four weeks after cyclone ami hit the island. the following variables were recorded for each water sample: a. town where sample was collected b. type of water supply (river intake, stream, or borehole) c. acidic level (ph scale, 1 to 14) d. turbidity level (nephalometric turbidity units ntus) e. temperature (degrees centigrade) f. number of fecal coliforms per 100 milliliters g. free-chlorine residual (milligrams per liter) h. presence of hydrogen sulphide (yes or no) identify each variable as quantitative or qualitative.