There are a number of instances in which it is better to use a median instead of a mean as the measure of central tendency. Which of the following is NOT a circumstance in which it's better to use the median? a.when a numeric (interval or ratio) variable is skewed b.when a numeric (interval or ratio) variable has several extreme outliers c.when the variable is ordinal d.when the variable is continuous

Solution Median is used when data has skewed distribution and data is quantitative. But when the…

Answered: There are a number of instances in…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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There are a number of instances in which it is better to use a median instead of a mean as the measure of central tendency. Which of the following is NOT a circumstance in which it's better to use the median?

	a.	when a numeric (interval or ratio) variable is skewed
	b.	when a numeric (interval or ratio) variable has several extreme outliers
	c.	when the variable is ordinal
	d.	when the variable is continuous

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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