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according to data from the national health and nutrition exam survey from the center for diease...

according to data from the national health and nutrition exam survey from the center for diease control and prevention the average weight of american males over 20 is 190 pounds with a population standard deviation of 59 pounds. what is the probability of selecting an american male with weight between 150 and 210 pounds assuming weights are normally distrubuted.

Also according to the national health and nutrition exam survey data from the center of diease and control and prevention the average weight of american females over 20 is 163 pounds with a population standard deviation of 66 pounds. what is the probability of selecting a random sample of 36 american women over 20 with a mean weight less than 175 pounds?

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