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  3. (4 pts)the playing life of a sunshine radio is nor

(4 pts)The playing life of a sunshine radio is normally distributed with a mean of 500...

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  1. (4 pts)The playing life of a sunshine radio is normallydistributed with a mean of 500 hours and a standard deviation of 60hours.
  1. What percent of the radios will last from 500 to 620hours?

  1. What percent of radios will last less than 500 hours?
  1. What percent of radios will play between 560 and 620hours?

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