In calculating the Pearson correlation (r), which of the following can be a negative number?
a. ?X2
b. ?Y2
c. SSX
d. SPXY
d. SPXY
You might also like to view...
The standard error of the mean
a. estimates the standard deviation of the population. b. suggests how much sample means may vary due to treatment procedures. c. is the standard deviation of the distribution of sample means. d. All of these are true.
What technology resource helps move students from the symbolic realm of f(x) = x2 - 3 to the equivalent graphical rendering on an x-y coordinate to its accompanying numerical representation?
A. virtual manipulative B. mathematical simulation C. graphing utility D. spreadsheet
Which of the following arguments uses an avoidance rationalization to perpetuate prejudice?
a. If those women didn't have so many babies, they could come off welfare. b. Instead of studying why we are so different in this diversity class, why don't we study how we are alike. c. Now that an African-American president has been elected, there is no more racism in the United States. d. Gay people should keep their sexual preferences to themselves if they don't want to be bothered.
_______________ involves the combination of several single schemes into a multiple-scheme play experience in symbolic play.
Fill in the blank(s) with the appropriate word(s).