Question

Match each data set with the type of correlation it most likely represents.

average reading speed versus number of pages read

number of quarters put into gumball machine versus number of gumballs in machine

number of times flown versus time spent on an airplane

number of hours worked versus hourly wage

A. Strong positive
B. Strong Negative
C. Weak positive
D. No correlation

Answer 1

@LagrangeSon678 @lalaly @luisrock2008 @LUCY1206 Can you help me?? :)

Answer 2

Do you know what correlation is? :)

Answer 3

A correlation is the relationship between two variables! right?

Answer 4

Sure, but what kind of relationship? If two things correlate, what does it mean for them?

Answer 5

.................................

Answer 6

idk :S

Answer 7

If correlation is positive, it means they are likely to happen together. If negative: one is unlikely to happen if the other does. If there's no correlation, there's no statistical relationship between the two. Can you apply this to the question?

Answer 8

ill try :)

Answer 9

Cool, I'll stay around to check your answers. :)

Answer 10

for the first one is it positve???

Answer 11

Yeah. If someone reads quickly she'll read many pages.

Answer 12

how do i know if its strong or weak positive??

Answer 13

Unfortunately looking at this question, without any numbers, it's rather arbitrary. As such it's not a very good task. :) I'd say it's strong, because it's difficult to find a reason why reading quickly could result in the number of pages read not going up a lot. :)

Answer 14

ok

Answer 15

:( im trying to but i cant seem to figure it out

Answer 16

the other ones :(

Answer 17

Ok. If one variable goes "up" and another one inevitably goes "down", you have a negative correlation.

Answer 18

mmmmmm

Answer 19

the second one is negativeeee

Answer 20

right????????????

Answer 21

Indeed.

Answer 22

yaaaaaay

Answer 23

the last one is no correlation right? i dont know what hourly wage means

Answer 24

Hourly wage is how much money you get for one hour worked. And you're right - number of hours worked and how much you're paid usually aren't related.

Answer 25

ok so the order it is , is the order of the answers right????????????? its 1 A 2 B 3 C 4 D

Answer 26

Seems ok.

Answer 27

Can you find an explanation why the person creating this question might have considered 3 to be weakly correlated?

Answer 28

I have no clue

Answer 29

Well, you'd expect that you spend more and more time on the plane (total) if you take many flights. But if these are very short flights, a quickly increasing number of flights taken results in a slowly increasing total of time spent in the air. So both go up at the same time (positive correlation), but one is "slow to follow" (so it's weak). That's my best guess. Cheers!

Answer 30

ok thank you!!

Answer 31

i get
A,B,C,D in that order

Answer 32

looks good :)

Answer 33

ok Thank you!!!