Saturday
April 19, 2014

Search: If two fair dice are rolled, find the probability of a sum of 6 given that the roll

Number of results: 138,600

Maths
If two six-sided dice are rolled, the probability that they both show the same number can be expressed as ab where a and b are coprime positive integers. What is the value of a+b?
Wednesday, April 10, 2013 at 7:35am by Ian

6 grade math
Two dice are rolled. Find the odds in favor of a sum of 6.
Monday, January 18, 2010 at 4:55pm by James

math help please
two cards are dealt in succession from a standard deck of cards. what is the probability that the second card is red give that the first card was a heart. so i do p(R/H), then i know you go R*H/H. but how do i get the probability please explain! thanks. if 2 dice are rolled, ...
Monday, January 19, 2009 at 10:35am by Kennedy

Geometry
Six standard six-sided die are rolled. Let p be the probability that the dice can be arranged in a row such that for 1\leq k \leq 6 the sum of the first k dice is not a multiple of 3. Then p can be expressed as \frac{a}{b} where a and b are coprime positive integers. What is ...
Tuesday, March 12, 2013 at 10:04pm by John

Math urgent
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?
Thursday, June 3, 2010 at 1:03am by Mimi

Math
Alice and Finn roll two number cubes. Which of the following rules will make the game fair? Alice wins if a total of 5 is rolled. Finn wins if a total of 9 is rolled. Alice wins if a total of 7 is rolled. Finn wins if a total of 8 is rolled. Alice wins if a total of 3 is ...
Thursday, February 14, 2013 at 10:34am by Jonathon

probability
We have two fair three-sided dice, indexed by i=1,2. Each die has sides labelled 1, 2, and 3. We roll the two dice independently, one roll for each die. For i=1,2, let the random variable Xi represent the result of the ith die, so that Xi is uniformly distributed over the set...
Thursday, February 27, 2014 at 5:51pm by jon

math
If a dice is rolled 3 times, what is the probability of rolling a prime number, then a 2, and then a 5?
Tuesday, February 28, 2012 at 8:47pm by Karen

math
How many dice are being rolled? You cannot roll a 16 with two dice. With three disc, 11 is more probable than 16. You can verify that by adding up the possible permutations.
Wednesday, December 3, 2008 at 3:04pm by drwls

math
I think you need to consider that there is Dice A and Dice B, so your ways to achieve a sum of 7 should be: 1+6 2+5 3+4 4+3 5+2 6+1 (because it matters which diced rolled what number) *There are six numbers on each dice, so the total possibilities should be 6x6=36 SO, for ...
Wednesday, September 23, 2009 at 12:50am by Monica

pre algebra
Two 6-sided dice are rolled. Find the odds of rolling s sum that is a prime number
Sunday, April 3, 2011 at 8:01pm by Anonymous

science
A pair of fair dice is tossed once. If the sum of the two numbers is greater than 9, the probability that one of the numbers is a 6 =
Tuesday, July 17, 2012 at 2:08am by chinthaka

Math/Probability
Anna and bob play a game in which Anna begins by rolling a fair dice, after which bob tosses a fair coin. They take turns until one of them wins. Anna wins when she rolls a 6. Bob wins when the coin lands on heads. What is the probability that Anna will win the game? Well ...
Monday, May 31, 2010 at 12:44pm by Ally

algebra
need a pair of dice where each number from 1 - 12 has an equal chance of being rolled. You have been given the task of designing the new dice for the board game. You are to use two standard cubes (each with six faces) and number them in such a way that the probability of ...
Monday, February 8, 2010 at 11:52am by Delmar

math
A pair of dice is rolled. What is the probability of the sum of the numbers shown uppermost is less than 6?
Sunday, February 20, 2011 at 9:57pm by Vanny

Algebra2
how do you solve this? A dice is rolled twice. What is the probability of getting a multiple of 3 on the first roll or a total of 7?
Tuesday, April 10, 2012 at 10:29am by A

math
If you take 7 minus the result of a dice throw, then that's another valid dice throw. So, for two dice throws, the probability that the sum is greater than 8, is the same as the probability of 14 minus the sum being larger than 8, which is the same as the probability of the ...
Saturday, April 25, 2009 at 2:42pm by Count Iblis

Stats
1. If you were to receive $3 for every time a 7 or 11 was rolled with two fair dice and lost $1 for all the ther values, what is the expected value (mean) for you as a gambler in this experiment? (please show work so I know how to do it). 2. Going with the question above, ...
Sunday, April 28, 2013 at 3:10pm by Kayla

Probability - Check
Could someone check these answers for me. Thanks 1. (3x+y)^7 = 2187x^7 + 5103x^6y + 5103x^5y^2 + 8505x^4y^3 + 2835x^3y^4 + 567x^2y^5 + 63xy^6 + y^7 2. Eight people are boarding an airplane. Two have tickets for first class and board before those in the economy class. In how ...
Sunday, March 15, 2009 at 9:25pm by Marin

Binomial Math
A fair die is rolled four times. Calculate the probability of obtaining exactly two 5s. (Round your answer to four decimal places.)
Sunday, January 27, 2013 at 2:48pm by Bersy

Math
If you're rolling two dice, what is the probability that the sum of two dice is a 7?
Sunday, April 15, 2012 at 6:59pm by Jenna

math
A pair of dice is rolled, and a number that appears uppermost on each die is observed, Refer to this experiment and find the probability of the given event. (Enter your answer as a fraction)The sume of the numbers ia an add number.
Saturday, April 21, 2012 at 7:32pm by Maria

math
what is the probability of rolling a 2 when a fair number cube is rolled?
Thursday, May 26, 2011 at 6:07pm by Antonio

Statistics
Two dice are tossed. What is the probability that the sum of both dice is a prime number? This is what I have so far Presuming two fair, 6-sided dice, each numbered 1 through 6: You can achieve one of the following results on any given roll: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12...
Tuesday, July 2, 2013 at 4:31pm by Meg

math
If two dice are rolled, what is the probability that their sum will be a number greater than 5 ? [A]1/6 [B]1/3 [C]13/18 [D]5/6 [E] None of these. i think it is c am i right? 13/18 so i am right? What is the probability the sum is 2,3,4 or 5? If you find that and subtract it ...
Wednesday, October 4, 2006 at 1:09am by cassidy

math
A pair of dice is rolled, and the number that appears uppermost on each die is observed. Refer to this experiment and find the probability of the given event. One die shows a 5, and the other is a number less than 2.
Sunday, February 20, 2011 at 9:25pm by Vanny

help!!!!! Probability!!!
A fair 6-sided die is rolled twice. The probability that the second roll is strictly less than the first roll can be written as a/b, where a and b are positive, coprime integers. What is the value of a+b?
Sunday, May 26, 2013 at 12:06pm by fweng

Math
Which pair has equally likely outcomes? List the letters of the two choices below which have equal probabilities of success, separated by a comma. A standard deck of cards has 12 face cards and four Aces (Aces are not face cards). A. drawing a red seven out of a standard 52 ...
Tuesday, July 26, 2011 at 7:24pm by Jen

counting and probability
A fair, six-sided die is rolled eight times, to form an eight-digit number. What is the probability that the resulting number is a multiple of 8? Express your answer as a common fraction.
Thursday, November 15, 2012 at 10:30am by zamanofdoom

Math
Anna and bob play a game in which Anna begins by rolling a fair dice, after which bob tosses a fair coin. They take turns until one of them wins. Anna wins when she rolls a 6. Bob wins when the coin lands on heads. What is the probability that Anna will win the game? Well ...
Monday, May 31, 2010 at 10:38pm by Sam

Stats
I roll a pair of fair dice and compute the number of spots on the two sides facing up. Denote this total by X. The probability distribution of X is X Prob 2 1/36 3 2/36 4 3/36 5 4/36 6 5/36 7 6/36 8 5/36 9 4/36 10 3/36 11 2/36 12 1/36 The probability that X is an even number is
Tuesday, July 2, 2013 at 3:28pm by MT

Help with math
I am stuck on a probability question. Please help and tell me the easiest way to find the answer to this.. I am confused and keep getting 5/6 A fair die is rolled..what is the probability of rolling an odd number or a number less than 3? the actual answer is 2/3.. tell me how ...
Wednesday, November 2, 2011 at 1:21pm by HM

HELP MATH
I am stuck on a probability question. Please help and tell me the easiest way to find the answer to this.. I am confused and keep getting 5/6 A fair die is rolled..what is the probability of rolling an odd number or a number less than 3? the actual answer is 2/3.. tell me how...
Wednesday, November 2, 2011 at 3:15pm by HM

probability and statistics I NEED HELP
A six-sided die is rolled 20 times and a 5 is rolled 9 times. a) State a null and alternative hypothesis for the die being fair. b) Can the null hypothesis be rejected at the .01 significance level?
Tuesday, May 31, 2011 at 10:07pm by Julie

algebra
It doesn't matter whether the 3 appears or not on the dice in the first roll. What matters is whether the sum of the winning roll is even or odd. The sum will be odd if one dice is an even number, and one dice is an odd number The sum will be even if both dice are even or both...
Sunday, September 14, 2008 at 5:45pm by Jennifer

Math (Probability) PLEASE HELP!!
If a 20-sided fair die with sides distinctly numbered 1 through 20 is rolled, the probability that the answer is a perfect square can be expressed as a/b where a and b are coprime positive integers. What is the value of a+b?
Saturday, April 27, 2013 at 10:50am by Hale

Stats
Two dice are tossed. What is the probability that the sum of both dice is a prime number? this is the answer i have ; Presuming two fair, 6-sided dice, each numbered 1 through 6: You can achieve one of the following results on any given roll: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12...
Monday, July 1, 2013 at 2:29pm by Megan

math
a pair of dice are rolled and the sum on their upturned faces is recorded. What is the probability that the sum showing is 8, given that one die is showing a 5? Taking into consideration the numbers 1-6 on the second die wouldn't the probability be 1/6?
Monday, November 22, 2010 at 12:26pm by m

Math
In how many ways can two dice be rolled to yield a sum divisible by 3?
Tuesday, February 15, 2011 at 1:49pm by Lilly

Probability
Two cubes are rolled .both cubes are labelled 1 to 6.the number rolled are added. What is the probability of each out come ? a) sum is 12 B)the sum is less than 4. C)the sum is 7. D)the sum is 2.
Tuesday, May 29, 2012 at 4:30pm by Sam

Probability
Two number cubes are rolled .both cubes are Labelled to 6. The numers rolled are added . What is the probability of each outcome? A) the sum is 12. B) the sum is less then 4. C) the sum is 7. D) the sum is 2.
Tuesday, May 29, 2012 at 5:04pm by Sam

discrete mths
Two dice, one red and one white are rolled. What is the probability that the white die turns up a smaller number than the red die ?
Tuesday, March 25, 2014 at 7:06am by Anonymous

Probability
A fair die is rolled twice with the two rolls being independent of each other. Let M be the maximum of the two rolls and D be the value of the first roll minus the value of the second roll. Are M and D independent?
Wednesday, January 21, 2009 at 8:14pm by Julie

Probability independence
A fair die is rolled twice with the two rolls being independent of each other. Let M be the maximum of the two rolls and D be the value of the first roll minus the value of the second roll. Are M and D independent?
Thursday, January 22, 2009 at 9:44am by Julie

Discrete Mathematics
Two Dice, one red and one white are rolled, what is the probability that the white die turns up a smaller than the red die ?
Tuesday, March 18, 2014 at 3:57am by Anupam

math
probability... two dice are tossed.... and their sum is recorded ..find probability p ( sum is between 2 and 9)
Wednesday, August 25, 2010 at 11:42pm by tana

probability
two dice are tossed. find the probability that the sum is odd given that the sum is 5 or less
Tuesday, June 12, 2012 at 1:57am by Anonymous

Math
What is the probability that rolling four fair, six-sided dice produces an even sum?
Tuesday, February 15, 2011 at 8:35am by Diana

Math
With two (fair) dice, there are 6*6=36 possible rolls. (1-1, 1-2, 1-3, ... 6-6) (hint: you could easily write all possible outcomes on a piece of paper) So, to get 9, one could have a 6-3, 3-6, 4-5, or 5-4. So, the probability is 4/36 = .11111. Take it from here
Monday, November 3, 2008 at 6:09pm by economyst

Math
A number cube is a die; two number cubes are two dice. Each side of the die has a number of dots -- from 1 to 6. What is the probability of tossing two dice and have both come up with 3's on top?
Wednesday, August 22, 2007 at 6:17pm by Ms. Sue

precalculus
Suppose that wo dice, one red and one green are rolled. How Many different outcomes are possible for the pair of dice?
Sunday, September 9, 2007 at 11:25pm by Jane

Brooke High School
Two dice are rolled. What are the odds in favor of a sum less than 5?
Saturday, December 5, 2009 at 2:01pm by Jackie

Brooke High School
Two dice are rolled. What are the odds in favor of a sum less than 5?
Saturday, December 5, 2009 at 3:10pm by Jackie

math
if two dice are rolled one time, what is the possibility of getting a number smaller than 5
Monday, October 10, 2011 at 11:12pm by ilda

probability please help!!
A fair, six-sided die is rolled eight times, to form an eight-digit number. What is the probability that the resulting number is a multiple of 8? Express your answer as a common fraction. I think the last 3 digits have to be divisible by 8 to be a multiple of 8...
Tuesday, November 20, 2012 at 5:19pm by confused

Probabilities
Two dice are thrown and the sum of the number of dots on the dice are noted. The probability that the sum is neither 2 or 3 is?
Tuesday, April 21, 2009 at 2:01pm by Andrey L

geometry
Paul claims, the probability of rolling a sum of 6 when you roll two dice is 1/11, because two dice have sums 2 through 12 which means there are 11 possible sums. "How do you respond?"
Thursday, January 13, 2011 at 9:37pm by crystal

probability
An octahedral die has eight faces numbered 1 to 8, each of which comes up with equal likelihood (you can see a picture of one in Diagram 3 of the Test 1 Supplement). Two such dice are rolled, and the product of the numbers is noted. In lowest terms, what are the odds against ...
Tuesday, April 5, 2011 at 9:34pm by nathon

Statistics
Find the probability that the sum is as stated when a pair of dice is rolled. A.4 or 11 or doubles B. 8,given that the sum is greater than 4. C.Even,given that the sum is greater than 4. A. 4 can be obtained by 1&3, 3&1 or 2&2. 11 can only be obtained by 5&6 or 6&5. Doubles ...
Monday, April 2, 2007 at 7:01pm by Mary

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...
Sunday, November 18, 2007 at 6:11pm by Danny

MATH 157
Can anyone please help me understand these math problems. #4. How many three-symbol codes (letter-number-number)can be made from the letters S, P, Y, and two-digits from the set of (0, 1, 2,..., 9) without repetition? #16. A pair of dice are rolled and the sum on their ...
Wednesday, August 4, 2010 at 12:46am by Rayna

Math
What is the probability of rolling a number less than 4 when a fair number cube is rolled?
Thursday, May 26, 2011 at 5:56pm by Antonio

Math
When two balanced dice are rolled, 36 equally likely outcomes are possible. What are the odds of getting a 5 or 6?
Wednesday, October 14, 2009 at 9:43am by Jenny

Math
You are given 9 to 1 odds against rolling a sum of 8 with the roll of two fair dice, meaning you win $9 if you succeed and you lose $1 if you fail. Find the expected value (to you) of the game.
Sunday, September 30, 2012 at 12:12am by Alisha

math
A pair of dice are rolled and the sum on their upturned faces is recorded. What is the probability that the sum showing is 8, given that one die is showing a 5?
Wednesday, December 16, 2009 at 1:00pm by t

English
Your statements or directions are all unclear about whether you are rolling one or two dice. Are you looking for a total of three on two dice or a "3" on one of the dice? The singular form of "dice" is "die", in case you are throwing only one. Two dice will have two faces up, ...
Friday, March 20, 2009 at 3:09am by drwls

probability - confused
A fair, six-sided die is rolled eight times, to form an eight-digit number. What is the probability that the resulting number is a multiple of 8? Express your answer as a common fraction. I think the last 3 digits have to be divisible by 8 to be a multiple of 8...
Tuesday, November 20, 2012 at 12:25pm by confused

Algebra 2
What is the probability when you roll 2 dice and you roll a number greater than 4 on the first dice and a 2 on the second dice? pls help :)
Sunday, March 4, 2012 at 2:37pm by Mary

Math
A pair of dice are rolled and the sum on their upturned faces is recorded. What is the probability that the sum showing is 8, given the one die is showing a 5?
Wednesday, August 5, 2009 at 12:51pm by Patti

math
A pair of dice are rolled and the sum on their upturned faces is recorded. What is the probability that the sum showing is 8, given that one die is showing a 5?
Wednesday, September 30, 2009 at 10:51pm by Aleah

mATH
A pair of dice are rolled and the sum on their upturned faces is recorded. What is the probability that the sum showing is 7 given that one die is showing a 4?
Friday, October 16, 2009 at 11:54pm by katelynn

math
A pair of dice are rolled and the sum on their upturned faces is recorded. What is the probability that the sum showing is 8, given that one die is showing a 5?
Sunday, December 13, 2009 at 11:12pm by Codi

Statistics
For a math assignment we need to design a dice roll game with different expected values of winning. The game should require a player to make a bet on the sum of one roll of two dice. If the dice sum to that number, the player wins; otherwise, he loses. We need to create a fair...
Wednesday, February 1, 2012 at 4:01pm by Jaime

Probability
A pair of dice is rolled, one black and one white. Find the probability of each of the following events. 1. The total is between 3 and 7. My answer: 1/3 2. The total is 13. My answer: 0 3. The numbers are 2 and 5. ????????? 4. The black die has 2 and the white die has 5...
Saturday, February 8, 2014 at 4:06pm by Anonymous

Math
You have three dice. What is the probability to find rolling two same number?
Wednesday, October 17, 2007 at 7:10pm by Sima

Math
A pair of fair dice is rolled. Let E denote the event that the number landing uppermost on the first die is a 3, and let F denote the event that the sum of the numbers landing uppermost is 6. Determine whether E and F are independent events
Sunday, August 15, 2010 at 1:35pm by Jack

math/Probability
what is the probability of rolling a sum that exceeds 4 with two dice
Friday, June 11, 2010 at 1:03am by anna

Math/Probability
What is the probability of rolling a sum that exceeds four with two dice
Monday, May 31, 2010 at 12:44pm by anna

Math
Should that be 24 PAIRS of two fair dice?
Friday, November 16, 2007 at 6:56pm by Michael

Math
Consider a die with 8 sides, marked one, two, three, and so on. assuming equally likely outcome, find the probability that the sum of two dice is the given number. If p(10)=
Wednesday, June 13, 2012 at 11:28am by Linda

Probability II =)
You are shown five cards, Three have X written on them and two have Y. The cards are turned over so the X abd Y are no longer visible, and shuffled/ One card is picked and laid face up on the table. It is an X. If the remaining cards are shuffled and another card is now laid ...
Friday, February 19, 2010 at 5:18am by Kesha

college math
a pair of dice are rolled and the sum is recorded. What is the probability that the sum shown is 8 given that one die is showing 5? Is this done correctly? P(8|5)=1/6 x 1/6= 1/36 I really just want to make sure I have done this the right way!
Wednesday, November 18, 2009 at 11:22pm by Lauren

Math [Probability]
a die is rolled and the spinner is spun. Find the probability
Sunday, September 10, 2006 at 3:24pm by octavia

Math 156
1)Suppose you buy 1 ticket for $1 out of a lottery of 3000 tickets. If the prize for the one winning ticket is to be $500, what are your expected winnings? I'm assuming the answer for this one is $0.00 2)A basketball player with a free throw shooting percentage of 60% gets ...
Friday, August 7, 2009 at 1:54pm by jessica

math
Probability: The study of probability helps us figure out the likelihood of something happening. For instance, when you roll a dice, you might ask how likely you are to roll a 4.Since there are 6 numbers on a dice and only 1 number 4 the probability would be 1 out of 6. The ...
Monday, October 15, 2007 at 5:27pm by Gina

math
if two dice are rolled 360 times, approximately how many times should you expect a sum of 7
Monday, May 10, 2010 at 12:31pm by tk

statistics
your teacher has invented a fair dice game to play. your teacher will roll one fair eight sided die and you will roll a fair six sided die. each player rolls once and the winner is the person with the higher number. in case of a tie neither player wins. a. let A be the event "...
Sunday, January 6, 2013 at 3:03pm by bri

probability/statistics
You roll two fair dice, a white one and a red one. a. find P(5 or 6 on the white die and odd number on the red die). b. Find P(odd number on the white die nad 5 or 6 on the red die). c. Find P(5 or 6 on the white die nad 5 or 6 on the red die. Please show work Thanks
Monday, June 27, 2011 at 9:43am by Harley

Math Probability
The probability of rolling 7 with two dice is 1/6. Six of 36 possible equally likely outcomes yield a sum of 7.
Friday, December 3, 2010 at 12:19am by drwls

math
A fair, six-sided die is rolled eight times, to form an eight-digit number. What is the probability that the resulting number is a multiple of 8? Express your answer as a common fraction.
Friday, July 27, 2012 at 5:47pm by Anonymous

Math
A spinner with three equal spaces (labeled A,B, and C) is spun. If the spinner lands on A or C a coin is flipped. If the spinner lands on B a standard 6-sided dice is rolled. What is the probability of spinning a B and rolling a prime?
Wednesday, June 5, 2013 at 9:08pm by Jennyy

Math
A spinner with three equal spaces (labeled A,B, and C) is spun. If the spinner lands on A or C a coin is flipped. If the spinner lands on B a standard 6-sided dice is rolled. What is the probability of spinning a B and rolling a prime?
Wednesday, June 5, 2013 at 10:12pm by Jennyy

Algebra102
A pair of dice is rolled~ A possible event is rolling a multiple of 5. What is the probability of the complement of the event? A. 2/36 B. 12/36 C. 29/36 D. 32/36
Thursday, May 20, 2010 at 7:04pm by NatoshaMarie

Math
A pair of dice are rolled and the sum on their upturned faces is recorded. What is the probability that the sum showing is 8, given that one die is showing a 5? Answer: 1/6. Did I come up with the right answer? Thanks.
Monday, August 3, 2009 at 1:59pm by B.B.

math
If a 6-sided number cube is rolled twice, what is the probability that a 1 is rolled both times?
Thursday, April 3, 2014 at 6:29pm by Anonymous

Dice Probability
What is the probability of rolling two number cubes and having the first cube land on 2 and the second cube land on 3? I got 2/6 * 3/6 = 6/36 which becomes 1/6 1/6 probability is my answer correct?
Monday, September 30, 2013 at 9:35am by Alex

Probability
Roll four dice one time. What is the probability that the sum will be odd?Can anyone explain/show in detail how to find the answer to this problem?
Sunday, September 12, 2010 at 2:26pm by Diane

Probability
Roll four dice one time. What is the probability that the sum will be odd?Can anyone explain/show in detail how to find the answer to this problem?
Sunday, September 12, 2010 at 7:32pm by Diane

math
1. A teacher has 10 boys and 12 girls in her grade school class. In how many ways can she select 8 of the children to be in a play if she must select 5 boys and 3 girls. 2. The manager of the various displays in the Acme Fine Clothing Emporium has a window which will hold 4 ...
Sunday, July 29, 2012 at 4:50pm by kwame

math probability
I assume you mean that it is a fair spinner (i.e. it stops at any position with equal probability) but the sectors of the spinner are of different sizes. In this case, the probability of it stopping on "a" is the sector angle of a (in degrees) divided by 360. If it is not a ...
Monday, May 7, 2012 at 11:57pm by MathMate

Pages: <<Prev | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | Next>>

Search
Members