Below is the Predator-Prey data that shows population numbers for predator and prey species A and B in an ecosystem over a period of 16 years.

Time (Years) Number in Predator Species Number in Prey Species 0 10 200 1 22 310 2 34 323 3 36 228 4 25 111 5 12 77 6 8 154 7 17 273 8 30 329 9 36 271 10 30 153 11 17 80 12 9 117 13 13 229 14 25 317 15 35 301 16 33 198

1. Would the mean or median be a better measure for the center of the predator data? Explain your reasoning.

2. Use the sample to estimate the measure of center that you chose for both species.

3. For each of these species, estimate the proportion of species over the next 16 years.