The manager of a warehouse would like to know how many errors are made when a product’s serial number is read by a bar-code reader. six samples are collected of the number of scanning errors: 36, 14, 21, 39, 11, and 2 errors, per 1,000 scans each. what number of errors is made by all scans, based on these six samples?

the f

last graph i believe

step-by-step explanation:

worked it out i believe

i believe it's a.

i'm not sure on this one, most likely correct.

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.