Question

Statzzzzz

Answer 1

ill help if you become fan plzzzzzzz

Answer 2

it's not D

Answer 3

can i get medal

Answer 4

and I'll help you without you fanning me.

Answer 5

well i did lol

Answer 6

ill bet my moms a teacher in this stuff

Answer 7

let's take these choices one by one

Answer 8

do you know what an influential point is?

Answer 9

she is smarten than youll ever be so shetup your gonna make her fail so leave you nerd

Answer 10

yes, it is a point that effects the regression line dramatically

Answer 11

my mom is teacher

Answer 12

ok. What about the second choice?

Answer 13

i promise plz believe me

Answer 14

do you know what an outlier is?

Answer 15

yes, it is a point that deviates from the general average of the data set, and has little to no effect on the slope of the regression line

Answer 16

she helps me she goes to aiken high south carolina searfch it up and search in staff jennifer harrison

Answer 17

ok. so an outlier, because it deviates from the general average of a data set, will drastically chance the correlation coefficient r, right?

Answer 18

yes

Answer 19

screw this when she fails ill laugh

Answer 20

but the correlation coefficient in the problem changes only by .01 right? so it's not an outlier.

@gamingreborninme , would you please stop spamming? You have literally not contributed anything until now and you're making it hard for @INEEDHELPNOWPLZ

Answer 21

true, but wouldnt a influential point do the same?

Answer 22

well, let's talk abou tthat later... since it seems like a confusing answer

Answer 23

do you know what a residual is?

Answer 24

yes it is e

Answer 25

close. It's the difference of the observed from the expected

Answer 26

as in it's the difference between what you actually have (observed) and what the line predicts

Answer 27

yah

Answer 28

and what's an extrapolation?

Answer 29

I dont know, out teacher never taught us

Answer 30

an extrapolation is a guess outside of the bounds of your data using your model. This can't be the right answer because you are talking about an actual observed point (not a predicted value by your model)

Answer 31

oh ok

Answer 32

so the answer is the residual

Answer 33

careful lol

Answer 34

a point can't be a residual. A residual is just the difference between your observed and expected values

Answer 35

it's not a predicted y value either because you're looking at an actual observed data point

Answer 36

oh yah

Answer 37

sorry to lead you on a long goose chase, but the only valid answer is the first one.

Answer 38

so by default its e

Answer 39

oh the first one?

Answer 40

Yes. your correlation coefficient tells you how much your model fits with your data. because the correlation coefficietn went up that means that your point was actually a valid piont on your model

Answer 41

furthermore it significantly changed the slope of your regression line.

Answer 42

therefore by definition it is an influential point.

Answer 43

ok cool thnxs

Answer 44

you're welcome :)