Find and s for:
(a) The lizard data in Exercise 2.19.

(b) The acid rain data in Exercise 2.115.

1.28 1.36 1.24 2.47 1.94 2.52 2.67 1.29 1.56 2.66 2.17 57 2.10 2.54 163 2.11 2.57 1.72 0.76 1.02 1.78 0.50 1.49 1.57 1.04 1.92 1.55 1.78 1.70 1.20 3.58 3.80 4.0 4.01 4.05 4.05 4.12 4.18 4.20 4.2 4.27 4.28 4.30 4.32 4.33 4.35 4.35 4.41 4.42 4.45 4.45 4.50 4.50 4.50 4.50 4.51 4.52 4.52 4.52 4.57 4.58 4.60 4.61 4.61 4.62 4.62 4.65 4.70 4.70 4.70 4.70 4.72 4.78 4.78 4.80 5.075.20 5.26 5.41 5.48