Jul 16, 2017 Research papers

Briefly discuss the concept of mode, mean, median. What is it? How is it calculated? When would we use each one?

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Central Tendency and Variability II

INSTRUCTIONS:

Briefly discuss the concept of mode, mean, median. What is it? How is it calculated? When would we use each one?



Following are the resting pulses of subjects, reported in beats per minute. Calculate the mean resting pulse, rounded to the nearest beat. Be sure to show your work.



60 53 58 48 56 50 62 51 52



A hospital kept track of the birth weights of babies measured in grams. The results are shown below.



2824 2973 3015 3025 3041 3102 3189



Find the median birth weight in grams. Provide an interpretation of your results.



Last year, ten former employees of a company passed away. Their ages at death are listed below.



79 75 72 55 66 80 77 79 68 70



Find the Mode. Provide an interpretation of your results.





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 II Name Course Instructor Date A] Briefly discuss the concept of mode, mean, median. What is it? How is it calculated? When would we use each one? Measures of central tendency The measures of central tendency in the form of the mode, median and mean show the position of data distribution, with values lying between the lowest and highest extremes of the data set. As such, there are useful to describe the behavior of distribution by focusing on the center, and the mean is typically used together with the measures of variability. In other words, measures of central tendency also represent the typical value, where data values congregate around. Mode The mode is the most common number within a set, and one needs to find the frequency of each number, and the mode is the number that is most frequent (Norman & Streiner, 2008). Typically sorting the dat

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