K The table shows the educational attainment of the population of a country, ages 25 and over, expressed in millions. Find the probability that a randomly selected person, aged 25 or over, has completed four years of high school only or some college, but less than four years. Years of High School Less than 4 4 only Years of College Some (less than 4) 4 or more Total Male 11 30 22 19 82 Female 15 32 24 16 87 Total 26 62 46 35 169 The probability is (Type an integer or a simplified fraction.)

Suppose that X, Y, and Z are jointly distributed random variables, that is, they are defined on the same sample space. Suppose that we also have the following. E(X)=-1 E(Y) = 4 E (Z)=0 Var(X)=20 Var(Y) = 27 Var (Z) = 38 Compute the values of the expressions below. E (5Z-2) = 0 2Z+X -5 Var(2X-3) = 0 E = E (32²) = 0 Explanation Check X O hp Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Term

Complement of 5pi/6

OD. -10 10