In a country with a population of 6 million people, 60,000 deaths occurred during the year ending December 31, 2013. These included 30,000 deaths from cholera among 100,000 people who were sick with cholera. 6. The cause-specic mortality rate 'om cholera in 2013 was: A. 5 in 1,000 B. 10 in 1,000 C. 20 in 1,000 D. 50 in 1,000 7. The case-fatality from cholera in 2013 was: A. 10% B. 15% C. 20% D. 30% 8. In a study of a disease in which all cases that developed were ascertained, if the relative risk 01R) for the association between a factor and the disease is equal to 1, then: There is no association between the factor and the disease The factor protects against developing the disease The comparison group used was unsuitable, and a valid comparison is not possible There is either no association or a negative association between the factor and the disease POP\"? True or False 9. Number needed to treat is usually expressed as the reciprocal of absolute risk reduction