simultaneous equations with three variables and three equations

Two 6-sided dice are rolled simultaneously. List all the outcomes, where the sum of the two numbers is 7. => (1, 6), (2, 5), (3, 4), (4, 3), (5, 2), (6, 1) or (4, 4), (5, 1), (6, 3) or (1, 5), (2, 6), (3, 3) or None of the above..

Two 6-sided dice are rolled simultaneously. List all the outcomes, where the sum of the two numbers is 9. => (3, 6), (4, 5), (5, 4), (6, 3) or (2, 7), (7, 2) or (2, 7) or None of the above..

Two 6-sided dice are rolled simultaneously. List all the outcomes, where the sum of the two numbers is 9. => (3, 6), (4, 5), (5, 4), (6, 3) or (2, 7) or (2, 7), (7, 2) or None of the above..

Two dice were thrown simultaneously. Express verbally the probability of getting a double. => 4 out of 36 or 3 out of 36 or 6 out of 36 or 5 out of 36..

Which of the following expressions is a variable expression? => 3 ÷ 1 or 3 - 4 or 9(2 x ) or None of the above..

Four queen cards are placed on the table. A coin is tossed and one of the queen is chosen simultaneously. What is the probability of getting a tail on the coin and the queen of diamonds? => 1 8 or 1 2 or 3 8 or 1 4..

Pick the correct variable expression for the given statement. "Cost of 4 belts and 3 ties is $163." => 4 b = $163 or 4 b - 3 t = $163 or 3 t = $163 or 4 b + 3 t = $163..

Although the probability distribution of a continuous random variable cannot be presented in tabular form, it can have a formula in the form of a function represented by f(x) usually called the probability density functio..

A rope is cut into 5 equal pieces. A small piece of 3 ft is again cut from each of the 5 pieces. Choose the correct variable expression for the new length of each piece. => ( x 3 - 5) ft or ( x 5 + 3) ft or (3 - x 5 ) ft or ( x 5 - 3) ft o..

There can be several r.v's associated with an experiment. A random variable which can assume only a finite number of values or countably infinite values is called a discrete random variable. e.g., Consider a random experiment of tossing three coins simultaneously. Let..