4. In a group of 400 babies, 200 were exposed to high amounts of alcohol before birth. Out of those who were exposed to high amounts of alcohol, 100 were born underweight. Out of those who were not exposed to high amounts of alcohol, 40 were born underweight. a. Make a 2 by 2 table for the above data. 10 pts b. Calculate the odds ratio of babies exposed to high alcohol amount being born underweight. Show the step-by-step calculations and the final answer. 10 pts c. What is your interpretation? 5 pts3. Discuss the advantages and disadvantages of hospitals, general population, and special population controls in a case-control study