Mathematics, 12.08.2020 04:01 mmaglaya1
g Air quality. Daily air quality is measured by the air quality index (AQI) reported by the Environ- mental Protection Agency. This index reports the pollution level and what associated health effects might be a concern. The index is calculated for five major air pollutants regulated by the Clean Air Act and takes values from 0 to 300, where a higher value indicates lower air quality. AQI was reported for a sample of 91 days in 2011 in Durham, NC. The relative frequency histogram below shows the distribution of the AQI values on these days. 16 (a) Estimate the median AQI value of this sample. (b) Would you expect the mean AQI value of this sample to be higher or lower than the median
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g Air quality. Daily air quality is measured by the air quality index (AQI) reported by the Environ-...
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