1. Identify the three types of probability and provide one example for each. You may refer to the video Introduction to Probability (Links to an external site.) (9:00) for the three types of probability.
2. View the video John Snow and the Cholera Outbreak of 1854 (Links to an external site.) (8:01). You will use what you have learned about the different types of probability and information from the video to determine what type of probability epidemiologist John Snow may have employed.
3. Apply the concept of probability to a real-world scenario. Watch Finding Probability Example | Probability and Statistics | Khan Academy (Links to an external site.) (2:55) to help you calculate the probability of the specified events using the data presented in the table below.
The data presented is a study of obesity in children 5–10 years of age who are seeking medical care at a particular pediatric practice within the past 12 months.
Age (years)5678910TotalBoys4323795014104204182560Girls4085134124364615002730Totals8408929138468819185290
(Data Source (Links to an external site.))
What is the probability of selecting a girl, P(girl)?
What is the probability of selecting a boy who is 9 years old, P(9 year old boy)?
What is the probability of selecting a child (boy or girl) who is at least 7 years old, P(child at least 7 years old)?
Discussion Prompts
Respond to the following prompts in your initial post:
What are the three types of probability? Provide an example for each one.
Based on the video and the three types of probability, what type of probability did John Snow use? Briefly explain your reasoning.
Provide your answer to the following probability questions using the data provided in the table.
What is the probability of selecting a girl, P(girl)?
What is the probability of selecting a boy who is 9 years old, P(9 year old boy)?
What is the probability of selecting a child (boy or girl) who is at least 7 years old, P(child at least 7 years old)?
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