yaneiryx4365 yaneiryx4365
  • 15-03-2024
  • Mathematics
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A certain brand of tires has a mean life of 5.5 years with an estimated standard deviation of 1.1 years. Assume the life of the tires is normally distributed. What is the probability that a randomly selected tire lasts more than 7 years?
a) 0.1357
b) 0.2643
c) 0.8643
d) 0.9357

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