Compare the two groups of data. which best describes the data? a) the spread of data for boys is 2 centimeters greater than the girls b) the spread of data for boys is 5 centimeters greater than the girls c) the spread of data for boys is 8 centimeters greater than the girls d) the spread of data for boys is 12 centimeters greater than the girls

Find a parametrization for the curve「and determine the work done on a particle moving along γ in r3 through the force field f: r^3--r^3'where f(x, y,z) = (1,-x, z) and (a) im (γ) is the line segment from (0,0,0) to (1,2,1) (b) im (γ) is the polygonal curve with successive vertices (1,0,0), (0,1,1), and (2,2,2) (c) im (γ) is the unit circle in the plane z = 1 with center (0,0,1) beginning and ending at (1,0,1), and starting towards (0,1,1)