2 The breaking strength of plastic bags used for packaging produce is normally distributed with...

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2 The breaking strength of plastic bags used for packaging produce is normally distributed with a mean of 7 5 pounds per square inch and a standard deviation of 2 8 pounds per square inch What proportion of the bags have a breaking strength of a Less than 3 17 pounds per square inch b At least 5 pounds per square inch c Between 5 and 5 pounds per square inch d 98 of the breaking strengths will be between what two values symmetrically distributed around the mean e Below what value 90 of plastic bags fall f Between what two values 99 of bags fall

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