Please answer questions 1-4 correctly with legible explanations

Problems: 1. A sociologist has created a brief survey to be given to 2000 adults randomly selected from the U.S. population. Here are her first two questions: (1) Have you ever been the victim of a felony crime? (2) Have you ever been convicted of a felony? Determine whether the study is an experiment or an observational study, and then identify a major problem with the study. (5 points) 2. Below is a frequency distribution for blood platelet counts from a random sample of 147 female adults. Create a relative frequency distribution and relative frequency histogram for this data set. (10 points) Blood platelet count Frequency 100-199 25 200-299 92 300-399 28 400-499 0 500-599 2 Table 1: Frequency distribution for blood platelet count data set 3. Below is a table containing measured radiation absorption rates (in W/kg) corre- sponding to a random sample of 11 smartphones, as reported by the Federal Com- munications Commission. Determine the 5-number summary for these data and specify if there are any outliers (assuming the 1.5x IQR standard). (10 points) 1.18 1.41 1.49 1.04 1.45 0.74 0.89 1.42 1.45 0.51 1.38 Table 2: Random sample of measured radiation absorption rates 4. The contingency table below contains data from Crandall, Olson, and Sklar, repre- senting population data for drivers involved in head-on collision of passenger cars. One of the drivers is randomly selected. Which event is more likely: that they were killed, given that they did not use a seatbelt, or that they were not killed, given they did use a seatbelt? (10 points) Driver killed Driver not killed Seatbelt used 3655 7005 Seatbelt not used 4402 3040 Table 3: Contingency table of drivers involved in head-on collision