35800 -1pg- 5 hrs

35800 Topic: MAT 232 Statistical Literacy

Number of Pages: 1 (Double Spaced)

Number of sources: 2

Writing Style: APA

Type of document: Other (Not listed)

Academic Level:Undergraduate

Category: Sociology

Language Style: English (U.S.)

Order Instructions: attached.

Video 2: When Should You Use the Mean and When Should you Use the Median.

You will find Video 2: When Should You Use the Mean and When Should You Use the Median by navigating to the MSL Tool for Success link under Course Home.

This video focuses more on when to use a mean and when to use a median. House prices are used to demonstrate that when data are non-symmetric – especially when there are extreme outliers – the median gives a better description of a typical value than the mean. Specifically, the prices of properties on two blocks are compared: in one, all houses are similar and there isn’t much difference between the median and mean; in the other, there is a big expensive block of apartments, so that the mean is nearly twice the median, and far from the cost of any individual property.

But we want to get away from the idea that the data, and only the data, drives the choice of descriptive statistic. The example is given that, if you wanted to buy all the houses in Brooklyn, if you took the median, and multiplied by the number of houses, you wouldn’t have enough cash. So the median is a useful descriptive statistic, but the mean is essential for planning and making decisions.

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

Should you use the median or mean to describe a data set if the data are not skewed? Are the standard deviation or the interquartile range factors?

This is a friendly reminder that your week 3 DB post is due today (11:59 PM your time). For this post, choose one of the questions; but whichever question you choose, make sure to provide some numerical results (make up your example to show the mean and median and why mean might be misleading through your numerical example).

Look into my week 3 slides to get ideas about a misleading mean example.

Also, read the examples from page 118 -- 122 in your book. Those examples are fantastic and will guide you in writing up your post.

As usual remember this -- this is discussion post -- that means you can always re-post, post extra examples, references, corrections, etc, etc, once you did your initial post. Just like in a discussion, you discuss back and forth, you can do that with your initial post.

Your initial post should be 150 to 250 words in length. Respond to at least two of your classmates’ posts by Day 7 in at least one paragraph.

ext

Bennett, J., Briggs, W. & Triola, M. (2014). Statistical reasoning for everyday life (4th ed.). Boston, MA: Pearson Education, Inc.

Chapter O: Orientation Questions for Students

Chapter 1: Speaking of Statistics

Supplemental

Pearson. (2012) MyStatLab [Virtual Lab].

Recommended Resources

Websites

Probability and statistics (Links to an external site.)Links to an external site.. (2015). Retrieved from https://www.khanacademy.org/math/probability

Pezzullo, J. C. (n.d.). Web pages that perform statistical calculations (Links to an external site.)Links to an external site.! Retrieved from http://statpages.org/