Multiple Choice
The average age of trees in a large local park is 60 years, with a standard deviation of 2.2 years. A simple random sample of 400 trees is selected, and the sample mean age x̄ of these trees is computed. What is the probability that the average age x̄ of the 400 trees is more than 60.1 years?
A) 0.0001
B) 0.1814
C) 0.4801
D) 0.8186
Correct Answer:
Verified
Correct Answer:
Verified
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