please answer all questions. the time limit i...
please answer all questions. the time limit is 2 hours (120 minutes) good luck! question 10 what is the correct formula for calculating an odds ratio? c/(c + d) (a*d)/(b*c) (a/(a + b))/(c/(c + d)) a/(a + b)
Answer
# Brief Explanations:
In a 2 - by - 2 contingency table with cells labeled as a, b, c, and d, the odds ratio is calculated as the ratio of the odds of an event occurring in one group to the odds of it occurring in another group. The formula $\frac{a\times d}{b\times c}$ represents this calculation.
# Answer:
B. $(a*d)/(b*c)$