Math Solutions

(See Steps) Over the years, a city has kept a record of the daily amount of suspended particulate matter in the air. It is known that the daily mean amount

Question: Over the years, a city has kept a record of the daily amount of suspended particulate matter in the air. It is known that the daily mean amount of suspended particulate matter in a city is 68μg/m 2 with a variance of 102.82 μg 2 /m 3 . A sample of air quality in the city is taken for thirty-seven days . What is the probability that the mean will: (a) exceed 71.5μg/m 2 ? (b) be between 63.5 and 72.3μg/m 2 ? (c)   be less than 64μg/m 2 ?

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