Data mining is more ________ than OLAP

A revenue account

a. is increased by debits. b. is decreased by credits. c. has a normal balance of a debit. d. is increased by credits

Consumer research conducted in Mexico and Saudi Arabia used different sampling techniques for the same study

In Mexico, ________ was used by having experts identify neighborhoods where the target respondents lived; homes were then randomly selected for interviews. In Saudi Arabia, ________ employing the snowball procedure was used because there were no lists from which sampling frames could be drawn and social customs prohibited spontaneous personal interviews. A) systematic sampling; convenience sampling B) systematic sampling; quota sampling C) judgmental sampling; convenience sampling D) quota sampling; judgmental sampling