Whereas _____ are not good at generating random numbers because of consideration of previous events, _____ have no memory for previous events and can therefore be unbiased.
A) researchers; students
B) computers; random numbers tables
C) humans; computers
D) students; researchers

Question

Quizplus · Accepted Answer

The sentence is comparing two types of entities (researchers and students, computers and random numbers tables, humans and computers). The correct choice is C because it directly contrasts humans with computers, stating that humans have a memory for previous events (and are therefore not good at generating random numbers) while computers have no memory and can therefore be unbiased.

Whereas _____ Are Not Good at Generating Random Numbers Because