SOLUTION: A study found that the average life expectancy is 53 years with a standard deviation of 7.5 years. If a person is selected at random, what is the probability that the person will d

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Question 465510: A study found that the average life expectancy is 53 years with a standard deviation of 7.5 years. If a person is selected at random, what is the probability that the person will die before the age of 65?
A. 94.52%
B. 82.89%
C. 94.95%
D. 88.49%
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
z=(65-53)/7.5=1.6
The area under the normal curve below 1.6 is .9452=94.52%
.
Ed