Mathematics, 14.04.2020 21:53 boomerjm
According to the rules of Major League Baseball, the ball must weigh between 5 and 5.25 ounces. A factory produces baseballs whose weights are approximately normally distributed, with mean 5.11 ounces and standard deviation 0.062 ounce.
a. What proportion of the baseballs produced by this factory are too heavy for use by Major League Baseball?
b. What proportion of the baseballs produced by this factory are acceptable for use by Major League Baseball? ?
c. A coach purchases 20 baseballs from this factory. What is the probability that the average weight of the balls the coach purchases is greater than 5.15 ounces?
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According to the rules of Major League Baseball, the ball must weigh between 5 and 5.25 ounces. A fa...
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