¿qué es lo más importante que el autor me está diciendo sobre el tema? o ¿esta idea expresa realmente lo más importante que el autor dice sobre el tema? o ¿cómo puedo saber si esta es la idea principal?

Describe the relationship between bias and variability through an example. given that the proportion of all americans that believe president bush is doing a good job is 42%, you then conduct a series of 10 polls to confirm or refute this claim of 42%. describe your results a) there is high bias and high variability in your results. b) there is high bias and low variability in your results. c) there is low bias and high variability in your results. d) there is low bias and low variability in your results.