Multiple Choice (choose the best answer) 9. A number that summarizes sample data values, and is often used to estimate a characteristic of a population. A.Variable B. Distribution C. Statistic D. Parameter 10. Which aspect(s) of experimental design is(are) important for attaining a data set that will provide an accurate and unbiased answer to your scientic question? You may write more than one letter if more than one aspect is important for attaining this goal. A. Control B. Comparison C.Repiication D. Randomization 1 1. Statistics computed from repeated, independent samples taken from the same population, will exhibit some degree of variation. Which of the following correctly matches a source of this random variation with an aspect of study design that could minimize variation from that source? A. Random sampling variation of the sample statistic is minimized by collecting data from a large sample. B. Random sampling variation of the sample statistic is minimized by training personnel. C. Measurement error is minimized by implementing random sampling. D. Measurement error is minimized by collecting data from a large sample