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A manufacturer of a printer determines that the mean number of days before a cartridge runs out of ink is 75 days, with a standard

  1. A manufacturer of a printer determines that the mean number of days before a cartridge runs out of ink is 75 days, with a standard deviation of 6 days. Assuming a normal distribution, what is the probability that the number of days will be less than 67.5 days? More than 88? (1 point)

a. Less than 67.5 days

b. More than 88 days

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