A random sample of two variables, x and y, produced the following observations: x y 19 7 13 9 17 8 9 11 12 9 25 6 20 7 17 8 Compute the correlation coefficient for these sample data. A) -0.9707 B) -0.2141 C) 0.5133 D) 0.8612

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.)