# What is it? How is it calculated?

## What is it? How is it calculated?

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# Descriptive Statistics Part II: Central Tendency and Variability

INSTRUCTIONS:

Module 3 - Case DESCRIPTIVE STATISTICS PART II: CENTRAL TENDENCY AND VARIABILITY Case Assignment 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. Case Assignment Expectations Use the information in the modular background readings as well as resources you find through ProQuest or other online sources. Please be sure to cite all sources and provide a reference list at the end of the paper. Submit the paper as a Word document through the link provided for the assignment. Length: 2–3 pages typed and double-spaced.

CONTENT:
Descriptive Statistics Part II: Central Tendency and VariabilityName:Institution:Course:Tutor:Date:Descriptive Statistics Part II: Central Tendency and Variability 1 Briefly discuss the concept of mode, mean, median. What is it? How is it calculated? When would we use each one? * MeanThe mean is also loosely referred to as the average. The arithmetic mean or simply the mean is calculated by summing up all the values and then dividing the result by the total number the total number of quantities available (Regentsprep.org, 2012). The total number of quantities within the set of values is referred to as the frequency. Therefore, the arithmetic mean is calculated by summing all the values within the set then dividing the result by the total frequency. The mean is also a measure of central tendency in a data having no extreme value or outlier. Unlike the mode, the mean is unique in that there can only be one value as an answer for the mean. The arithmetic mean is used in...