Probability | COUC 701 – Statistics | Liberty University

1. A Survey of 30 people to find out if they are left-handed or right-handed, and use the following chart to create a contingency table with the information.

Left handed= 6

 Right handed = 24

Total Female lefty =4 righty=16

Male lefty Total= 2 righty=8

1. Answer the following questions about the information in your contingency table:
   1. If a person is randomly selected from the survey participants, what is the probability that the person will be left-handed?
   2. If you randomly choose a female from the people you surveyed, what is the probability that she is left-handed?
   3. What is the odds ratio of choosing a left-handed female?
   4. What is the relative risk of choosing a left-handed female?
   5. Skim through at least one of the following articles on left-handed vs. right-handed people from the Chamberlain Library. Answer the following question: How do the probabilities and percentages for your study compare to those in the study you read?

references

1. https://search-proquest-com.chamberlainuniversity.idm.oclc.org/nahs/docview/211689160/DB2AB8D1E63B4638PQ/4?accountid=147674

2. https://search-proquest-com.chamberlainuniversity.idm.oclc.org/nahs/docview/1326739712/DB2AB8D1E63B4638PQ/10?accountid=147674