1. In the graph, there are two distributions: A and B. We can know from the graph: a. Distribution A has a bigger standard deviation than distribution B b. Distribution B has a bigger standard deviation than distribution A c. Distribution A and distribution B have the same standard deviation d. We cannot tell which has a larger standard deviation from the graph 2. A researcher collected BMI (Body Mass Index) of 50 students in an Engineering school. He found the mean BMI was much smaller than the median BMI. The reason for this might be___ a. Several students had much smaller BMI scores than the other students b. Several students had much larger BMI scores than the rest c. The researcher made some measurement errors d. All the students had smaller BMI scores, compared to national average 3. What is the level of measure for each of the following: a) Final grades in this class _____________________ b) Weights of newborn babies _____________________ c) Seasons of the year _____________________ d) Boiling temperatures of different liquids _____________________ 4. Determine type of sampling used: a) I collected shoe sizes from my family _____________________ b) 1003 adults were called after their phone numbers were randomly generated by computer ____________________ c) Police stopped every sixth driver for sobriety test ____________________ d) U.S.D.O.C. collected data by randomly selecting 8 Federal prisons and surveying every prisoner _____________________