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Math · Statistics And Probability
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6.2 The weight of an adult bottlenose dolphin was found to follow a normal distribution with a mean of 550 pounds and a standard deviation of 50 pounds. a. What percentage of adult bottlenose dolphins weigh from 400 to 600 pounds? b. If Y represents the mean weight of a random sample of 9 adult bottlenose dol phins, what is P(500<X<580) c. In a random sample of 9 adult bottlenose dolphins, what is the probability that 5 of them are heavier than 560 pounds?

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