In a scatter diagram, the more tightly clustered the data points ...

[saliriagwu]

In a scatter diagram, the more tightly clustered the data points are around a straight line, the __________ the correlation coefficient is between the two variables.
 
  a. lower
  b. higher
  c. closer to zero
  d. weaker

Question 2

Steve wants to examine the linear relation between the number of times a commercial appears on television and the dollar sales of the advertised product. Which of the following correlation coefficients should Steve calculate?
 
  a. product-moment correlation coefficient
  b. Spearman rho
  c. point-biserial correlation
  d. phi coefficient

[missalyssa26]

Answer to Question 1

b

Answer to Question 2

a

[saliriagwu]

Excellent

[FergA]

Thanks for the timely response, appreciate it