Answered: Lecture(10.2): The Peabody Picture…

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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Lecture(10.2):

The Peabody Picture Vocabulary Test has a standard score population mean of 100 and a standard

deviation of 15. You tested a class of Grade 2 students wondering if their score would be different

from the population. Here is the data that you collected.

87 84 78 98 104 106 65 115 84 85 83 95 94 91 74 62 60 108 102 73

64 71 96 89 92

(a) what is the median?.

(b)what is the mode?.

sum(x**2)= (sum(x))**2=

Round your answer to decimal places.

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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