The joint p. m.f. for discrete x and y is f(x, y) = 1/6 when 0 ≤ x + y ≤ 2 and x and y are nonnegative integers. sketch the support of x and y . record the marginal p. m.f.’s in the "margins". compute cov(x, y ) and determine the correlation coefficient rho

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.