(a) If the correlation between two variables is close to 0, you can conclude that a scatterplot would show
A. a strong straight-line pattern.
B. a cloud of points with no visible pattern.
C. no straight-line pattern, but there might be a strong pattern of another form.
D. None of the above.
(b) What are all the values that a correlation r can possibly take?
A. r ≥
0
B. -1 ≤ r ≤ 1
C. 0 ≤ r ≤
1
D. None of the above.