Answered: Which of the following statements are…

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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Which of the following statements are TRUE about the Normal Distribution? Check all that apply.

__ About 95% of all datavalues lie within 1 standard deviation of the mean.

__ Data values are spread evenly around the mean.

__ Data values farther from the mean are less common than data values closer to the mean.

__ The graph of the Normal Distribution is bell-shaped, with tpaering tails that never actually touch the horizontal axis.

__ 50% of the data values lie at or above the mean.

__ The mean, median and mode are all equal and occue at the center of the distribution.

__ The distribution is symmetric with a single peak.

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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