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2 votes
2 votes
Which or the following is not a possible value for the correlation coefficient (r)?

2

-1

0.34

User Alkathirikhalid
by
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2 Answers

13 votes
13 votes

Answer: A) 2

Step-by-step explanation:

The correlation coefficient r has this range of values


-1 \le r \le 1

which can be stated as "r is between -1 and 1, including both endpoints".

As you can see, r = 2 is outside this range and not a possible correlation coefficient. The largest r can get is r = 1 to indicate perfect positive linear correlation.

On the other end of the spectrum, r = -1 means perfect negative linear correlation. In between, r = 0 means no linear correlation at all.

User Justinas Marozas
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3.2k points
10 votes
10 votes
The correct answer is 2– it is NOT a possible value for correlation coefficient (r) because the value of “r” must always be between +1 and –1.
User Jayakrishnan Salim
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2.5k points