The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with mean 1252 and standard deviation 129 chips. (at) What is the probability that a randomly selected bag contains between 1000 and 1500 chocolate chips? (b) What is the probability that a randomly selected bag contains fewer than 1025 chocolate chips? (c) What proportion of bags contains more than 1225 chocolate chips? (a) The probability that a randomly selected bag contains between 1000 and 1500 chocolate chips is I: (Round to four decimal places as needed.) (b) The probability that a randomly selected bag contains fewer than 1025 chocolate chips is D. (Round to four decimal places as needed.) (c) The proportion of bags that contains more than 1225 chocolate chips is '1. (Round to four decimal places as needed.)