An article by D. Schaefer et al. (Journal of Tropical Ecology, Vol. 16, pp. 189€“207) reported on a longterm study of the effects of hurricanes on tropical streams of the Luquillo Experimental Forest in Puerto Rico. The study shows that Hurricane Hugo had a significant impact on stream water chemistry. The following table shows a sample of 10 ammonia fluxes in the first year after Hugo. Data are in kilograms per hectare per year.

a. Mean.
b. Median.
c. Mode(s).
For the mean and the median, round each answer to one more decimal place than that used for the observations.

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96 66 147 147 175 116 57 154 88 154