a. (7%) What is the probability that a 55-year-old, disease-free male will develop colon cancer over the next 5 years?

c. (3%) Compare the observed number of rooms with 2 or more affected occupants with the expected number of rooms. Does this comparison give any evidence that clustering of disease occurs within rooms?Table 2Number of affected people and total number of people in a room for an outbreak of acute gastroenteritis in a nursing home in Baltimore, Maryland| People in room | Total number of rooms | Number of rooms with | | | | || --- | --- | --- | --- | --- | --- | --- || | | 0 affected people | 1 affected person | 2 affected people | 3 affected people | 4 affected people || 2 | 13 | 5 | 4 | 4 | 0 | 0 || 3 | 4 | 1 | 2 | 0 | 1 | 0 || 4 | 15 | 2 | 4 | 3 | 5 | 1 |

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a. (7%) What is the probability that a 55-year-old, disease-free male will develop colon cancer over the next 5 years?

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