1, Describe the difference between data and sample observation? 2, Why are you taking sample from the target population? 3, Classification of statistics based on the scope of the decision, statistics can be classified into (describe it)? 4, Clssify the following statements into qualitative and quantitative and identify the level of measurement for each ? I, Number of children in a family II, Temprature recorded at noon time on a given day III, House number in Harar IV, Miles driven by a certain bus 5, What is the uses of statistics? 6, Find the harmonic mean of A, 1,2,3,4,5 B, 1,2,3,4,100 Is there a great difference between the harmonic mean of A and that of B?​