SOLUTION: A survey found that people keep their televisions an average of 4.2 years. The standard deviation is 0.86 year. If a person decides to buy a new TV, find the probability that he or

Question 1055096: A survey found that people keep their televisions an average of 4.2 years. The standard deviation is 0.86 year. If a person decides to buy a new TV, find the probability that he or she owned the old one for the given amount of time. Assume the random variable is normally distributed
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
If I understand your question, you want to set up a normal distribution with and and then want to find the probability for .
If so, that would be a z-score of , so .

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