Inferential statistics are ________

a. statistical procedures that allow researchers to draw inferences about how statistically meaningful a study's results are.
b. statistical procedures that organize and summarize research data.
c. averages that are calculated by adding up a set of quantities and multiplying the sum by the total number of quantities in the set.
d. a set of techniques for combining data from a number of related studies to determine the explanatory strength of a particular independent variable.

Answer: a