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Data are collected in xy pairs and a scatter diagram shows the points are grouped very close to a straight line that tips down on its right hand end. A reasonable value for the coefficient of correlation is:
Suggested Answer: D
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37 comments · newest first
ET
Ettie
11 months ago
Definitely not 1.3 or --1.8, those are way off!
DA
Dalene
11 months ago
I thought it could only be between -1 and 1?
KA
Kallie
11 months ago
Wait, can the correlation be less than -1?
MA
Malika
11 months ago
Totally agree, --.9 makes sense here!
VE
Venita
12 months ago
Looks like a strong negative correlation, so probably --.9.
VI
Vince
12 months ago
I feel like --.9 makes sense here, but I’m worried I might be overthinking it.
GO
Golda
12 months ago
I practiced a similar question where the points were also close to a line, and I think I chose a negative value then too.
JO
Josefa
1 year ago
I’m not entirely sure, but I think a correlation of 0 means no relationship, which doesn’t fit this scenario.
JO
Jospeh
1 year ago
I remember that a strong negative correlation would be close to -1, so maybe --.9 could be the right answer?
LE
Leatha
1 year ago
This question seems straightforward, but I want to make sure I understand the key details before selecting an answer.
VO
Vonda
1 year ago
Okay, let's see. I know nodes can have priority values, so that's one. Connection limits and loadbalancing mode also seem relevant.
FL
Fletcher
1 year ago
Hmm, I'm a bit unsure about this one. I know there are a few ways to handle logging in ODI, but I can't quite remember the specific steps. I'll have to think this through carefully.
RY
Ryan
1 year ago
I'm feeling a bit correlated out after studying all these scatter plots. Maybe I should just roll a dice and hope for the best.
ST
Stephane
1 year ago
Hmm, I wonder if the exam writers are trying to trick us with those crazy negative signs. But I'll stick with my gut and choose C - -0.9.
DE
Delfina
1 year ago
I agree with you, negative correlation makes sense in this scenario.
NI
Nilsa
1 year ago
I'm not sure, but I'll go with D, 1 seems like a safe bet.
LE
Leonor
1 year ago
I'm going with A, .8 seems like a reasonable value for correlation.
DO
Dona
1 year ago
I think C is a good choice, negative correlation makes sense here.
JA
Jani
1 year ago
This is a classic case of a negative linear correlation. The correct answer must be C - -0.9. Time to ace this exam!
WI
Willodean
1 year ago
Let's go with C) -0.9 then, it makes the most sense
CA
Carlton
1 year ago
I agree, a negative linear correlation indicates a coefficient of correlation close to -1
VI
Vincent
1 year ago
I think the correct answer is C) -0.9
LE
Lelia
1 year ago
A coefficient of correlation can't be greater than 1, so options E and F are out. I'm leaning towards C - -0.9, since the line is tipping down on the right.
MU
Murray
1 year ago
So, we can eliminate E and F, leaving us with A) 0.8, B) 0, C) -0.9, and D) 1 to choose from.
RO
Ronnie
1 year ago
Yeah, a coefficient of correlation can't be greater than 1, so options E and F are definitely out.
CA
Cammy
1 year ago
I agree, since the scatter diagram shows the points are grouped close to a straight line tipping down on the right.
ES
Essie
1 year ago
I think C) -0.9 is the most reasonable value for the coefficient of correlation.
TH
Thad
1 year ago
Yeah, C) -0.9 seems like the most reasonable choice based on the information provided.
TH
Therese
1 year ago
I would go with C) -0.9 as well, it fits the description given.
LA
Larae
1 year ago
I agree, a negative correlation seems appropriate in this case.
LU
Luis
1 year ago
I think C) -0.9 makes sense because the line is tipping down on the right.
LO
Louvenia
1 year ago
Hmm, the scatter plot shows a strong linear relationship, so I'm thinking the coefficient of correlation should be a high positive value. I'll go with option D - 1.
AI
Ailene
1 year ago
User2: Yeah, I think option D - 1 is the best choice here.
RE
Reuben
1 year ago
User1: I agree, a high positive value makes sense in this case.
CA
Carin
2 years ago
I'm not sure, but I think the answer might be C) --.9 because the line tips down on its right hand end.
KI
Kimberely
2 years ago
I agree with Carla, a coefficient of correlation of .8 makes sense in this scenario.
CA
Carla
2 years ago
I think the answer is A) .8 because the points are close to a straight line.