Statistics Unit 7 Discussion Board.

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# Unit 7 Discussion

There are three types of probabilities: theoretical probability, relative frequency probability, and subjective probability. In addition, some data (such as female adult heights) are normally distributed data.

1. From your own experience either personally or professionally, provide an example of when you have encountered or used relative probability. Start by defining relative probability. Next, describe the example and explain why it is relative probability, rather than theoretical or subjective.

2. From your own experience either personally or professionally, provide an example of when you have encountered or used subjective probability. Start by defining subjective probability. Next, describe the example and explain why it is subjective probability, rather than relative or theoretical.

3. Research the Internet to learn more about data that is normally distributed. When normal data are graphed with a histogram, they form a bell-shaped curve. Is normal data symmetric or skewed? What does it mean for data to be skewed left? Name a variable that you would expect to be normally distributed and explain why. For example, female height is normally distributed.

Please create personalized and substantive responses to at least two other student main posts. In your response, include the following:

Choose any two classmates and review their main posts.

- Review the student’s examples for subjective and relative probability. Are their examples valid? Why or why not and explain clearly. If not, update and correct their examples.
- One of the key differences between relative probability and subjective probability is that relative probability requires the collection of a data sample and subjective probability is based on personal experience. In the student’s post, determine if they explained and correctly identified this difference. If incorrect, offer them a correct example. If correct, write down that method they used to collect data for the relative probability example.
- Review the student’s answer to the question, “Name a variable that you would expect to be normally distributed.” Do you agree? Why or why not? Offer a second example to the student of a variable that would be normally distributed.