Question

If a correlation is perfect,

a. all the points must fall on a straight line
b. all the points must fall on a curve line
c. most the points must fall on the line, but some can miss it
d. none of the points fall on a straight line

Answer 1

If a correlation is perfect, all the points must fall on a straight line.

Step-by-step explanation:

If a correlation is perfect, all the points must fall on a straight line. This indicates a strong linear relationship between the two variables being analyzed. For example, if we plot the weight and height of individuals and find a perfect positive correlation, all the data points will fall exactly on a straight line.