Mathematics, 22.11.2019 23:31 Alex4530
Te 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 x represents the mean weight of a random sample of 9 adult bottlenose dolphins, what is p x (500 580 < < ) ?
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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