The probability distribution of a random variable x is given below. x 2 4 6 8 9 p(x = x) 5⁄27 1⁄9 10⁄27 2⁄27 7⁄27 given the mean find the variance (var(x)) and the standard deviation, respectively.

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

You are a male who just graduated from college with a bachelor's degree. you have a job paying $50,780.00/yr. a. how does your salary compare to the yearly median earnings for a male with a bachelor's degree? b. what is the difference between the yearly median earnings for a male with a bachelor's degree compared to a male who does not attend college after earning a high school diploma?