Posted: July 1st, 2022

# 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

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Right handed = 24

Total Female lefty =4 righty=16

Male lefty Total= 2 righty=8

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

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