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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

Using the accompanying weddings data, find the mean, median and standard deviation of the wedding costs. What would you tell a newly engaged couple about what costs to expect? Consider the effect of possible outliers in the data.

E.
B
C.
00609
2.
47500
42700
000
31400
30500
7.
8.
00660
28300
25300
11
0000
12
23800
13
14
22500
15
0090
9T-
0090
17
0090
18.
1.
17700
2.
22
15300
23
13800
24
25
27

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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