A researcher in the town of Graham did a survey with children. He discovered that they watched TV an average of 15 hr per week (standard deviation = 1 hr, and the data are normally distributed).If a child is chosen at random in the town of Graham, what is the probability that he or she watches TV for more than 18 hr per week? Please round your answer to the nearest thousandth.
A. 
B. 
C. 
D. 
E. 
Answer: A
Computer Science & Information Technology
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