Answered: You select a sample of 30 scores from a…

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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Question

You select a sample of 30 scores from a population of 1,000 scores. You compute the mode, median, and mean on the sample of 30 scores. You then select another sample of 30 scores from the same population. What measure of central tendency is likely to vary least between your first and second samples?

Question 4 options:

	the mode
	the median
	the mean
	The three measures are likely to vary by the same amount

Definition Definition Measure of central tendency that is the value that occurs most frequently in a data set. A data set may have more than one mode if multiple categories repeat an equal number of times. For example, in a data set with five item—3, 5, 5, 29, 473—the mode is 5 because it occurs twice and no other value occurs more than once. On a histogram or bar chart, the element with the highest bar represents the mode. Therefore, the mode is sometimes considered the most popular option. The mode is useful for nominal or categorical data (e.g., the most common color car that users purchase), but it is problematic for continuous data because it is more likely not to have any value that is more frequent than the other.

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