Author Question: The Spearman rank-correlation coefficient is _____. a. a correlation measure based on the average ... (Read 182 times)

laurencescou · **on:** Jun 24, 2018

The Spearman rank-correlation coefficient is _____.
a. a correlation measure based on the average of data items
b. a correlation measure based on rank-ordered data for two variables
c. a correlation measure based on the median of data items
d. None of the answers is correct.

Question 2

For a minimization problem, the optimistic approach is often referred to as the
a. minimax approach
b. maximin approach
c. maximax approach
d. minimum approach