The LD50 for aldicarb, a common active ingredient in pesticides, Is approximately 0.8 mg/kg birds such as grackles and sparrows Approximately how much aldicarb would have a 50 percent chance of killing a 120-g grackle

What information does a survey provide? a. an accurate description of the population surveyed b. whether there is a predictive relationship between two variables? c. whether there is a cause-and-effect relationship between two variables d. none