Let x1, x2, and x3 represent the times necessary to perform three successive repair tasks at a service facility. suppose they are independent, normal rvs with expected values μ1, μ2, and μ3 and variances σ1 2, σ2 2, and σ3 2, respectively.

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

If i have 20$ and i gave 5$ away how much i got

Factor the polynomial 4x4 – 20x2 – 3x2 + 15 by grouping. what is the resulting expression? (4x2 + 3)(x2 – 5) (4x2 – 3)(x2 – 5) (4x2 – 5)(x2 + 3) (4x2 + 5)(x2 – 3)