The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips.

(a) What is the probability that a randomly selected bag contains between

1000 and 1400 chocolate chips, inclusive?

(b) What is the probability that a randomly selected bag contains fewer than 1050

chocolate chips?

(c) What proportion of bags contains more than 1200

chocolate chips?

(d) A bag that contains 1025 chocolate chips is in the

enter your response here ____thth

percentile.

(Round to the nearest integer as needed.)