Q1. A pistachio rancher buys a new fertilizer system that is supposed to increase the yield per acre. She uses the system for one year and notes the following output per acre:
71.7 46.0 103.9 54.4 43.3 68. 1 73.4 45.1 45.6 44.9 77.8 50.5
a) Calculate the Average yield per acre
b) Calculate the Standard deviation