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CrumpLab / psyc3400

Website for Psyc 3400 Statistics @ Brooklyn College (Taught by Matt Crump)
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Number 29 on midterm review #21

Open KShtayn6 opened 6 years ago

KShtayn6 commented 6 years ago

The table shows scores for and x,y pair of scores, and an a,b pair of scores. Which of the following is correct about the correlation between x and y, and the correlation betwen a and b. You should be able to answer this question without computing the correlations. (a) The correlation between x and y is positive, the correlation between a and b is negative (b) The correlation between x and y is negative, the correlation between a and b is positive (c) The correlation between x and y is positive, the correlation between a and b is zero (d) The correlation between x and y is zero, the correlation between a and b is negative

subjects x y 1 8 7 2 7 3 3 2 6 4 4 2 5 25 27

Anyone know the answer? The numbers seem to be all mixed up (not increasing or decreasing)

mariamtogonidze commented 6 years ago

I believe the answer is (a) The correlation between x and y is positive, the correlation between a and b is negative

KShtayn6 commented 6 years ago

Thanks! I was looking at the wrong chart! makes sense