ents to class.. H of 42 students. 30 20
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:Professor Moore is interested in examining the commute times of
her students to class.. Here is a sample of daily commute times (in
minutes) of 42 students.
24
15
25
25
30
15
15
a)
Mean
Median
30
Mode
25
35
25
6
15
10
20
34
40
25
3
7
60
12
20
20
4
20
18
15
25
17
45
25
10
Identify the following statistics for this data set:
22
25
01
5
30
15
20
15
6
Sample Standard Deviation
Are there any outliers? Show your calculations. (You should
reference your lecture notes in Moodle, and also problem 12 in the
Section 3.3 problem set in your text for examples of how to
determine outliers in a data set. **Note: This method of
determining outliers will appear again on the midterm exam.)
b) What are some reasons for the variety of commute times,
beyond the obvious distance lived from campus? Be creative in
coming up with ideas regarding why a commute may be so quick
or so long.
Expert Solution
Introduction
Mean is the one of the measure of central tendency. It is used most widely. It is ratio of sum of the observation to the number of observation.
Median :
The middle value in a sorted, ascending or descending list of integers is known as the median.
It reflects the midpoint of the data since it is the point above and below which half of the
observed data falls.
Mode :
The value that appears most frequently in a given set is the mode.
Mode is another term for the value or number in a data collection that occurs most frequently or with a high frequency.
Standard deviation
The square root of the variance is used to calculate the standard deviation, a statistic that
expresses how widely spread a dataset is in relation to its mean.
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