18.What is the standard deviation of the square footage of the new condos with the added area? a) 149 sqft h) 49 sqft c) 63 sqft d) 104.83 sqft 19.Whioh of the following is closest to the value of the standard deviation of the data whose histogram is displayed below? Histogram of welmts of egg plants from a farm In 02. 1600 1400 1200 Hummer 13.6 17.0 20.4 23.0 27.2 30.6 34.0 weijlt 'II 01. a) 20 on b) 5 on. c) 1 on. d) 3 on