WILL MARK BRAINLIEST. Can someone help me wit des two questions?
1.) What do we call the rate of change?

a.) y-intercept
b.) x-intercept
c.) slope

2.) Which of these statements correctly defines slope?

a.) Change in y over change in x
b.) Change in x over change in y

Exclude leap years from the following calculations. (a) compute the probability that a randomly selected person does not have a birthday on october 4. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability that a randomly selected person does not have a birthday on the 1st day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability that a randomly selected person does not have a birthday on the 30th day of a month. (type an integer or a decimal rounded to three decimal places as needed.) (d) compute the probability that a randomly selected person was not born in january. (type an integer or a decimal rounded to three decimal places as needed.)