The Los Angeles Times regularly reports the air quality index for various areas of Southern California. A sample of air quality index values for Pomona provided the following data: 28, 42, 58, 48, 45, 55, 60, 49 and 50. 1. Compute the range and interquartile range. 2. Compute the sample variance and sample standard deviation (to 2 decimals). 3. A sample of air quality index readings for Anaheim provided a sample mean of 48.5 , a sample variance of 136 , and a sample standard deviation of 11.66. What comparisons can you make between the air quality in Pomona and that in Anaheim on the basis of these descriptive statistics? Choose the correct option: a. the aire quality is much better in pomona b. the air quality is much better in anaheim c. the air quality variability is greater in pomona d. the air quality variability is greater in anaheim
The Los Angeles Times regularly reports the air quality index for various areas of Southern California. A sample of air quality index values for Pomona provided the following data: 28, 42, 58, 48, 45, 55, 60, 49 and 50. 1. Compute the range and interquartile range. 2. Compute the sample variance and sample standard deviation (to 2 decimals). 3. A sample of air quality index readings for Anaheim provided a sample mean of 48.5 , a sample variance of 136 , and a sample standard deviation of 11.66. What comparisons can you make between the air quality in Pomona and that in Anaheim on the basis of these descriptive statistics? Choose the correct option: a. the aire quality is much better in pomona b. the air quality is much better in anaheim c. the air quality variability is greater in pomona d. the air quality variability is greater in anaheim
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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The Los Angeles Times regularly reports the air quality index for various areas of Southern California. A sample of air quality index values for Pomona provided the following data: 28, 42, 58, 48, 45, 55, 60, 49 and 50.
1. Compute the
2. Compute the sample variance and sample standard deviation (to 2 decimals).
3. A sample of air quality index readings for Anaheim provided a sample mean of 48.5 , a sample variance of 136 , and a sample standard deviation of 11.66. What comparisons can you make between the air quality in Pomona and that in Anaheim on the basis of these
a. the aire quality is much better in pomona
b. the air quality is much better in anaheim
c. the air quality variability is greater in pomona
d. the air quality variability is greater in anaheim
Transcribed Image Text:The Los Angeles Times regularly reports the air quality index for various areas of Southern California. A sample of air quality index values for Pomona provided the following data: 28, 42, 58, 48, 45,
55, 60, 49, and 50.
a. Compute the range and interquartile range.
Range
32
Interquartile range
b. Compute the sample variance and sample standard deviation (to 2 decimals).
13
Sample variance
Sample standard deviation
c. A sample of air quality index readings for Anaheim provided a sample mean of 48.5, a sample variance of 136, and a sample standard deviation of 11.66. What comparisons can you make
between the air quality in Pomona and that in Anaheim on the basis of these descriptive statistics?
- Select your answer -
39.55
9.63
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