Analyzing Spread and Variation & Normally Distributed Populations

250 words with one reference and include intext citation.  

Analyzing Spread and Variation

In the video, there is an example demonstrating how two similar restaurants have very different patterns of variation. Watch the video. Consider how the video discussed the variation in sales and how that corresponds to what you learned in Unit 2 “Measures of Dispersion”.  Then answer the following questions:

· What is the most likely cause of variation for the spread of sales?

· What other causes might there be for such a wide variation?

For your initial post, identify (but don’t collect) a type of dataset that might vary significantly from its mean. (Examples may be adult’s weights or BMIs, a company’s sales, or the number of pieces of mail you receive in a week. Using your imaginary dataset, answer the following questions:

· What is a brief description of the data?

· How much would you expect the data to vary?

· What might the causes of the variation be?

Please be sure to validate your opinions and ideas with citations and references in APA format.

Part 2

250 words with one reference and include in-text citation.

Normally Distributed Populations

In the video, Normal Curves,  there is a discussion about how and why different types of data are normally distributed. (A simple Internet search will give you several good examples.

For your initial post, identify (but don't collect) a type of dataset that might be normally distributed, and then answer the following questions:

• What is brief description of the data?
• Is the data normally distributed? Specifically, why is the data not uniformly distributed, or distributed in some other way?
• Normal data is clustered around the mean; what might cause the data you identified to have a different shape and not be clustered around the mean?

Please be sure to validate your opinions and ideas with citations and references in APA format.