Question

Which is the best estimate for the value of 'r' in the scatter plot?

a) 0.7
b) 1
c) -0.5
d) 0

Answer 1

The best estimate for the value of 'r' in the scatter plot is 0.7.

Step-by-step explanation:

The best estimate for the value of 'r' in the scatter plot is a) 0.7.

The value of 'r' is always between -1 and +1, and it represents the strength of the linear relationship between two variables. Values of 'r' close to 1 indicate a stronger positive correlation, while values close to -1 indicate a stronger negative correlation.

In this case, none of the other options (-0.5, 1, 0) are closer to 1 than 0.7, so the best estimate for 'r' is 0.7.