The manager of a bookstore sends a survey to 150 customers
who were randomly selected from a customer list

A. Biased sample

B. Random Sample

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Identify this conic section. x2 - y2 = 16 o line circle ellipse parabola hyperbola

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.)