Math urgent

posted by .

If two "fair" dice are tossed what is the probability that the sum of their faces will be a multiple of 3? Show or explain how you got your answer?

  • Math urgent -

    possibilities
    make a table
    label 1 through 6 at top
    label 1 through 6 down
    you have 36 boxes
    fill in the sums (1 through 12)
    note symmetry and ease of filling in because every box is one plus the one to the left or above
    a total of 12 of the 36 boxes holds a multiple of 3
    12/36 = 1/3

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Probability

    three fair dice are tossed. Let X,Y,Z denote the respetive numbers showing on their top faces. Assume X,Y,Z are independent. a) find P(X<Y) b) Show that the events (X<Y) and (Y<Z) are NOT independent heeelp...
  2. Probability

    1. When two fair dice are tossed, what is the probability of a sum of 4 or a sum of 8?
  3. Probability NEED HELP

    1. When two fair dice are tossed, what is the probability of a sum of 4 or a sum of 8?
  4. statistics

    Two dice are rolled and two fair coins are tossed. Let X be the sum of the number of spots that show on the top faces of the dice and the number of coins that land heads up. The expected value of X is _____ .
  5. statistics

    Two dice are rolled and two fair coins are tossed. Let X be the sum of the number of spots that show on the top faces of the dice and the number of coins that land heads up. The expected value of X is _____ .
  6. Probability

    A pair of fair dice is tossed once. Find the probability a sum of 5 or 3 appears.
  7. probability

    two fair six-sided dice are rolled and the sum of the dots on the top faces is recorded. a) complete the table, showing the number of ways each sum can occur sum: 1 2 3 4 5 6 7 8 9 10 11 12 ways:1 2 3 b)use the table to find the probability …
  8. probability

    Two six-sided dice each have the numbers 1 through 6 on their faces. Neither die is fair, but they are both weighted the same. The probability of rolling a certain number on one die is given in the table below: # 1 2 3 4 5 6 probability …
  9. Math-Probability

    Please explain how to get the answer.I have now idea. 1.If you roll two fair dice,one red and one green,what is the probability of getting a 2 on the red die and a 3 on the green die?
  10. Probablity

    Two dice are tossed simultaneously. What is the probability that “either the sum of top faces of dice is six or both top faces are similar”?

More Similar Questions