The mass of potatoes sold loosely in a supermarket bin are normally distributed with a mean of 372 grams and a standard deviation of 6.3 grams. the bin contains 164 potatoes.
(a) how many of the potatoes in the bin are expected to have a mass of 380 grams or more? round your answer to the nearest whole number.
(b) what percent of the potatoes in the bin are expected to have a mass of less than 360 grams? round your answer to the nearest tenth of a percent.
(c) what is the probability that a potato randomly selected from the bin will have a mass of at least 370 grams? round your answer to the nearest tenth of a percent.