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1. A particular fruit's weights are normally distributed, with a mean of 383 grams and a standard deviation of 24 grams.
If you pick 15 fruit at random, what is the probability that their mean weight will be between 362 grams and 394 grams
2. A manufacturer knows that their items have a normally distributed lifespan, with a mean of 3.1 years, and standard deviation of 1 years.
If 3 items are picked at random, 3% of the time their mean life will be less than how many years?
Give your answer to one decimal place.
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