Josh is preparing for an exam by completing practice tests that have different numbers of questions. for each practice test he notes the number of questions and the time it takes him to complete the the test.
next josh creates a scatter plot and draws a trend line to fit the data. to see how well the trend line represents the data, josh draws black lines to represent the distance each data point lies away from the trend line.
what is the sum of the residuals for all the points?

this is a very good question

step-by-step explanation:

i got a hair cut today from my mom not to flex just to flex kim jon un is one rad fellow i'd say you'd need to take the hairline in kinda like a box shape like someone rammed a lego brick into your head. from there you really need to take the top up keeping with that boxy aesthetic, finally coat the whole thing with gel if your country economics are failing or whatever you can just coat it with the starving children's food rations. about 5 orphans per strand is a good ratio. good luck with the fresh cut my dude

the answer is 99.

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed