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

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