4. You are given the following particulars of a sample: n = 5, 2x = 120 and Ex* = 3468 a. What is the mean b. What is the variance c. What is the standard deviation & Suppose the particulars were for a population instead of a sample, explain clearly if all or any of the mean, variance and standard deviation would change and why 3. Consider a sample with these x data values 25,24, 27, 33, and 41. Using the sample to evaluate each of the following taking care to use order off operation: a. Ex, b. x2 C. (x - 15) d. (x - 15) e. 2x2 - 15 4. You are given the following particulars of a sample: n = 5, 2x = 120 and Ex? = 3468 a. What is the mean b. What is the variance c. What is the standard deviation d. Suppose the particulars were for a population instead of a sample, explain clearly if all or any of the mean, variance and standard deviation would change and why