In a certain state, the daily amounts of industrial waste are normally distributed, with a mean of 6,000 tons and a standard deviation of 2,000 ons. Find the probability that on a randomly selected day the amount of industrial waste is between 9,400 and 11,800 tons. Use a table of the standard normal distribution to solve the problem. Round your answer to four decimal places.
?
A. 0.0427
B. 0.9573
C. 0.2911
D. 0.4270
E. 0.4697
Answer: A
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