Question: The time it takes a cleaning solution to completely sterilize a beaker after an experiment is normally distributed with a mean u = 52 seconds

The time it takes a cleaning solution to completely sterilize a beaker after an experiment is normally distributed with a mean u = 52 seconds and a standard deviation of o = 25 seconds. What is the probability that a sample of 80 beakers will take an average time between 50 and 55 seconds to be sterilized? (4) .6205 .1247 .5869 .1711

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