Which of the following would be most likely to yield statistical significant results? a. a larger dataset that is a biasedly selected representation of the population b. a larger dataset that is a randomly selected representation of the population c. a smaller dataset that is a biasedly selected representation of the population d. a smaller dataset that is a randomly selected representation of the population

The correct option is B. 
Statistical significant results are those results that are considered not to have occurred by chance, they are believed to have underlying causes for their occurrence. In order to get a statistical significant results, one has to use large data set, which is randomly choose. Large samples are essential in surveying   because they provide more accurate mean values and are more representative of the concerned population. Using random sampling helps to reduce the bias that can occur during the sampling exercise. 

It would be the second one because it passes the vertical line test