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The distribution of the weight of patients at a local urgent care clinic is normal with a mean of 150 pounds and a standard deviation of 10.6 pounds use this information to answer . 

What percentage of patients weight less than 130 pounds? 

What percentage of patients weight at least 160 pounds 

What percentage of patients weight between 135 and 175 pounds 

What weight cut offs the bottom 15% of patients weight at this clinic