Which of the following statements are true Note that there m

Which of the following statements are true? Note that there may be more than one correct answer; select all that are true. A survey is a type of observational study. A single observational study is efficient at identifying and controlling for lurking variables. Assuming a large population, in simple random sampling each individual in the population has the same probability of being selected. If an explanatory variable and a response variable are correlated, then it can safely be assumed that the explanatory variable causes the response variable Changes in the response variable can either explain or cause changes in the explanatory variable.

Solution

Fifth one is not correct. It should be \"changes in explanatory variable can either explain or cause changes in the response variable.\"