What is a benefit of using random sampling in an experiment? A. It can help control the effects of lurking variables. B. It can allow us to draw cause-and-effect conclusions. C. It allows the results of an experiment to be generalized beyond the sample to a larger population. D. Only A and B are correct. E. A, B, and C are all benefits of random sampling. Which one of the following statements is correct? A. The 1.5 x IQR rule is used in order to determine if a sample was randomly selected from the population. B. A pie chart should be used when the goal is to examine how a quantitative variable changes over time. C. When constructing a bar chart, the bars can only be ordered in one way from shortest bar to tallest bar. D. The interquartile range is less resistant to outliers than the standard deviation. E. We say we have bias if our sampling method leads to a systematic overestimate or underestimate of the population parameter.