1) The __________of a data set is the middle number when the observations are arranged in order from smallest to largest. a.median b. weighted mean C. mode d. arithmetic mean 2) If all of the values in a positive dataset are equal, which of the following will NOT be zero? a. the mean b. the variance C. the standard deviation d. the ith deviation about the mean 3) If the sample mean is GREATER THAN the sample median, the sample is: a. positively skewed. B.not valid for inference. C.negatively skewed. D. symmetric. 4. What is the SMALLEST possible value for a sample standard deviation? a. 1 b. There is no smallest value. C. -10 d. 0