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Frequency 7. The air quality index (AQI) measures the air quality in a region each day. Values of this index range from 0 to 300 and a higher value indicates lower air quality. AQI was reported for 90 randomly sampled days in Durham, NC over the past 5 years. The histogram below shows the distribution of these values. 18- 16- 12- How many days had AQI less than 28?

Frequency 7. The air quality index (AQI) measures the air quality in a region each day. Values of this index range from 0 to 300 and a higher value indicates lower air quality. AQI was reported for 90 randomly sampled days in Durham, NC over the past 5 years. The histogram below shows the distribution of these values. 18- 16- 12- How many days had AQI less than 28?

MATLAB: An Introduction with Applications
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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Frequency 7. The air quality index (AQI) measures the air quality in a region each day. Values of this index range from 0 to 300 and a higher value indicates lower air quality. AQI was reported for 90 randomly sampled days in Durham, NC over the past 5 years. The histogram below shows the distribution of these values. 10 12 AQI How many days had AQI less than 28? 72
Transcribed Image Text:Frequency 7. The air quality index (AQI) measures the air quality in a region each day. Values of this index range from 0 to 300 and a higher value indicates lower air quality. AQI was reported for 90 randomly sampled days in Durham, NC over the past 5 years. The histogram below shows the distribution of these values. 10 12 AQI How many days had AQI less than 28? 72
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