The weight of items produced by a machine is normally distributed with a mean of 8 ounces and a standard deviation of 2 ounces. What percentage of items will weigh between 6.4 and 8.9 ounces?
a. .1145
b. .2881
c. .1736
d. .4617
d
Business
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a. True b. False Indicate whether the statement is true or false
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