The accompanying frequency distribution represents the square footage of a random sample of 500 houses that are owner occupied year round. Approximate the mean and standard deviation square footage. Click the icon to view the data table.
The accompanying frequency distribution represents the square footage of a random sample of 500 houses that are owner occupied year round. Approximate the mean and standard deviation square footage. Click the icon to view the data table.
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:Row
Square footage Lower Limit Upper Limit
Frequency
va
1
0-499
499
9
500-999
500
13
666
1499
1000-1499
1000
36
4
1500-1999
1500
1999
121
5
2000-2499
2000
2499
119
2500-2999
2500
2999
81
7
3000-3499
3000
3499
47
8
3500-3999
3500
3999
45
4000-4499
4000
4499
22
10
4500-4999
4500
4999
7
11
12
13

Transcribed Image Text:The accompanying frequency distribution represents the square footage of a random sample of 500 houses that are owner
occupied year round. Approximate the mean and standard deviation square footage.
Click the icon to view the data table.
The mean square footage is x=.
(Round to the nearest integer as needed.)
Expert Solution

Step 1
Square Footage | Frequency | Midvalues (xi) | fixi |
0 - 499 | 5 | 249.5 | 1247.5 |
500 - 999 | 17 | 749.5 | 12741.5 |
1000-1499 | 33 | 1249.5 | 41233.5 |
1500 - 1999 | 115 | 1749.5 | 201192.5 |
2000 - 2499 | 125 | 2249.5 | 281187.5 |
2500 - 2999 | 83 | 2749.5 | 228208.5 |
3000 - 3499 | 45 | 3249.5 | 146227.5 |
3500 - 3999 | 41 | 3749.5 | 153729.5 |
4000 - 4499 | 26 | 4249.5 | 110487 |
4500 - 4999 | 10 | 4749.5 | 47495 |
N = | 500 | Total: | 1223750 |
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