1. consider the following control chart representing the number of errors made by an insurance firm. we want to use the runs test for nonrandomness to determine whether the process that generated these measurements is random. invoice # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 # errors 1 5 4 1 5 2 1 3 7 4 6 3 2 3 2 (i) determine the number of runs. (1 pt) (ii) perform the test for nonrandomness. (4 pts)

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

i need a diagram

step-by-step explanation:

no

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6