# Probability

posted by .

Find the probablity of getting a sum of at least 8 by tossing a six-sided die twice.

I keep getting 5/36 but my book says 5/12.

• Probability -

Of the 36 possibilities, when tossing the same die twice, the ones that give a sum of 8 or more are:
6,2; 6,3; 6,4; 6,5; 6,6
5,3, 5,4, 5,5, 5,6
4,4; 4,5; 4,6
3,5; 3,6
2,6
That is 15 out of 36, for a 5/12 probability of 8 or more.

That is also the probability of tossing eight or more with two dice.

## Similar Questions

1. ### statistics

If you flipped a penny and a nickel, and rolled a die, what is the probability of: a. getting at least one head on the coins and a 6 on the die?
2. ### statistics

Use of normal distribution to approximate the desired probability. Find the probability of getting at least 30 fives in 200 tosses of a fair 6 sided die.
3. ### math

A six-sided die with sides numbered 1 through 6 is tossed twice. What is the probability of getting a number larger than 4 on both throws
4. ### Math for liberal arts

A single 6-sided die is rolled twice. C. Find the odds in favor of getting 2 numbers whose sum is greater than 5. I would simply like to be shown the steps to work this problem.
5. ### Acc. PreCalculus

1.A boy has 5 vests and 3 jackets. How many outfits can he wear if he wears both a vest and a jacket?
6. ### Math

Find the probability for the experiment of tossing a six-sided die twice. Put the answer in a/b form. P(the sum is odd or prime)
7. ### Math

1. If you flip a fair coin 10 times, what is the probability of a) getting all tails Is it 1/1024?
8. ### math

An ancient Korean drinking game involves a 14-sided die. The players roll the die in turn and must submit to whatever humiliation is written on the up-face: something like "Keep still when tickled on face." Six of the 14 faces are …
9. ### Math

A fair eight-sided die is rolled six times. A success is getting a 6, 7 and 8. Find the probability of getting three successes.
10. ### Statistics

Find the probability of getting a prime number thrice by tossing a die 10 times.

More Similar Questions