The distribution of weights of 16-ounce bags of a particular brand of potato chips is approximately normal with a standard deviation of 0.28 ounce. How does the weight of a bag at the 40th percentile compare with the mean weight?
(A)0.40 ounce above the mean (B)0.25 ounce above the mean (C)0.07 ounce above the mean (D)0.07 ounce below the mean
D