(c) which interval gives a larger average rate of change, [40, 50] or [40, 80]? [40, 50] [40, 80] correct: your answer is correct. (d) compute f(40) − f(0) 40 − 0 . -15/3 incorrect: your answer is incorrect. what does this value represent geometrically? the slope of the line segment from (0, f(0)) to (40, f(40)) the slope of the tangent line at (0, f(0)) the slope of the tangent line at (20, f(20)) the slope of the tangent line at (40, f(40)) correct: your answer is correct. need ? read it

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

Apack of gum would be considered a(n) necessity luxury item small ticket item unaccountable expense

Which is an accurate comparison of the two data sets? the commute to work is typically shorter and more consistent than the commute home. the commute to work is typically shorter but less consistent than the commute home. the commute to work is typically longer and less consistent than the commute home. the commute to work is typically longer but more consistent than the commute home.