Which kind of investigations are meant to provide large amounts of information about a wide range of variables

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity

Aresearcher created three groups based on participants bmi: normal weight, overweight and obese. the hypothesis being tested is that the three groups differ in the mean number of artificially sweetened drinks consumed weekly. which statistical test might the researcher use, assuming a reasonably normal distribution of values.

Who discovered tuberculosis bacteria?