The seed number S. Consider the following data on 20 plants.

Find the following for the given measurement.
a. The sample mean.
b. The sample median.
c. The trimmed means tr(5), tr(10), and tr(20).

Plant Weight Height Yield Number of seeds 2.1 0045 3.3 0.132 3.5 0.187 18.6 4.2 0.129 20.1 5.0 0.201 2.3 6.1 0.184 38.4 55 0.231 8 40.2 7.2 0298 7.4 0.287 10 43,86.9 0.310 6.7 0.276 7.6 0.353 5.6 0.462 8.0 0.561 7.3 10.8 12.1 18 3 14 7 21 9 42.1 43.8 15 12 13 45.8 14 15 52.7 78 16 60.3 17 98.9 11.2 0.723 18 178.3 19 213.1 13.5 1.022 20 298.8 17.3 L.745 44.9 46.4 9.8 0.598 9.2 0.668 17 21