mat232 week 2 discussion post on variation

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October 17, 2021
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October 17, 2021

mat232 week 2 discussion post on variation

THIS IS A DISCUSSION POST ONLY!

USE APA FORMAT IN-Text CITATION

Video Link below instructions.

THIS IS A STATISTICS COURSE.

200 words

TURNITIN Score must be below or at 12%…I will check when I recieve finished work.

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The video begins at the park, with cyclists and joggers going by. We show a very slow old woman going by on a bike, and then a bunch of racing cyclists. We point out that sometimes, what is interesting about a data set is not its average but how much it varies. We then discuss the weather in New York and San Francisco, which have pretty much the same average annual temperature, even though New York has hot summers and cold winters. Quartiles as a measure of variation are introduced by way of the price of food on take-out menus. The video ends with a practical application in medical research, where mean exposure to a toxin is far less interesting than the fact that a small number of individuals are exposed to very high levels.

Respond to one of the following questions in your initial post:

What are some examples, other than temperature, where similar averages can be associated with very different distributions? A few thoughts: costs (e.g., cost of illegally downloading a song online is the same average cost of driving above the speed limit, assuming that you are only caught speeding occasionally); ERA of pitchers (i.e., some are very consistent, others are sometimes brilliant, sometimes horrible); success rates in surgery (i.e., do we want an operation that most surgeons can do pretty well, or one in which a few surgeons are nearly perfect and some have very poor results?)

https://mediaplayer.pearsoncmg.com/assets/59wFBQX4ZoIHpxE_iuqtqJYSZgN3uFMM

additional video

https://www.youtube.com/watch?v=6IdJ1aPFDCs

 
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