A survey found that people keep their televisions an average of years. The standard deviation is years. 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.

96.73% is the probability that he or she owned the old one for the given amount of time.

Step-by-step explanation:

See the attached picture for detailed explanation.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

it is contrapositive

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