Jul 16, 2017 Research papers

# Briefly identify the differences between a normal, positive and negative skew. How does this skew or distribution curve relate to standard error? What does the standard error mean for the results?

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# Central Tendency and Variability

INSTRUCTIONS:

As we continue on with descriptive statistics,

1.Identify three uses for a frequency distribution. Please provide realistic health related examples.

2.Briefly identify the differences between a normal, positive and negative skew. How does this skew or distribution curve relate to standard error? What does the standard error mean for the results? Feel free to use and example to explain your answer.

Michelson, S. & Schofield, T. (2002). Chapter 1: Description. Data Dispersion, Noise and Error (pages 18-26). In: The Biostatistics Cookbook: The Most User-Friendly Guide for the Bio/Medical Scientist. Kluwer Academic Publishers. Available in Ebrary, accessed via Trident’s online library.

Norman, G., and Streiner, D. (2008). Chapter The Third: Describing the Data with Numbers: Measures of Central Dispersion. In: Biostatistics The Bare Essentials. 3rd Edition. BC Decker Inc. PMPH USA, Ltd. Shelton, CT. eISBN: 9781607950585 pISBN: 9781550093476. Available in Ebrary, accessed via Trident’s online library.

CONTENT:

Central Tendency and Variability Name Course Instructor Date Identify three uses for a frequency distribution One of the uses of a frequency distribution is to show the measures of location including, the mean, median, mode as well as the standard deviation which shows dispersion. In any case, presenting frequencies graphically through histograms represents the nature of the frequency distribution (Michelson & Schofield, 2002). The descriptive statistics further highlight on the characteris

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