With a height of 60 in, george was the shortest president of a particular club in the past century. the club presidents of the past century have a mean height of 64.6 in and a standard deviation of 2.9 in. a. what is the positive difference between george's height and the mean? b. how many standard deviations is that [the difference found in part (a)]? c. convert george's height to a z score. d. if we consider "usual" heights to be those that convert to z scores between minus2 and 2, is george's height usual or unusual? a. the positive difference between george's height and the mean is nothing in.

I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α.part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part bsuppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i. e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part cnow try a numerical problem. what is the direction of the vector w = < -1, 6 > ?