# two un biasedtetrahedral dice each have four faces number 1,2,3 and 4. the two dices are thrown together and the sum of the numbers on the faceson which they land is noted. Find the expected number of occasions on which

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1. ## math

If two dice are rolled and their faces noted, find each of the following probabilities: a) the sum of the two dice is 8 b) both dice show even numbers c) the sum of the two dice is 8 OR both dice show even numbers d) the sum of the numbers is 7, given that

2. ## math

Two dice are rolled. What is the probability that the sum of the dots on the upward faces is NOT 12

3. ## Probability

if two dice are rolled what is the probability that the sum of the dots on the upwards faces is 8?

4. ## Maths

Four fair sided dice, each with faces marked 1,2,3,4,5,6, are thrown on 7 occasions.Find the probability that the numbers shown on the four dice add up to 5 on exactly one or two of the 7 occasions.

5. ## probability

Jodie tosses a biased coin and throws two tetrahedral dice.The probability that the coin shows a head is. Each of the dice has four faces, numbered 1, 2, 3 and 4. Jodie’s score is calculated from the faces that the dice lands on, as follows:if the coin

6. ## math

Phil rolls 6 fair 6-sided dice. What is the probability that at least two dice show the same number?

7. ## Probability

You roll two five-sided dice. The sides of each die are numbered from 1 to 5. The dice are “fair" (all sides are equally likely), and the two die rolls are independent. Part (a): Event A is “the total is 10" (i.e., the sum of the results of the two die

8. ## mathematics

There is an octahedral (8-faces) die whose faces each have one different number from the set {1, 2, 3, 4, 5, 6, 7, 8}. The die is rolled twice, and the number appearing on top after the first roll is multiplied by the number appearing on top after the

9. ## MATH

Scott repeatedly rolls a pair of standard six-sided dice and keeps track of the sum of the two numbers rolled each time. So far he has not rolled any sum twice. What is the maximum possible number of times he has thrown the dice?

10. ## algebra

If two dice are rolled, what is the probability that the sum of the dots on the upward faces is 15?

The game of Yahtzee is played with five fair six-sided dice. A turn consists of rolling all five dice, selecting the ones you want to keep, re-rolling the rest, and then doing this one more time, if necessary. You need to match certain conditions in order

12. ## math

On a standard six-faced die,the numbers of the opposite faces always add to seven,Dena rolls a pair of fair,standard six-faced dice.She then takes the product of four numbers ,the two numbers on the faces that are showing on top of the dice and the two

13. ## math

A pair of dice is rolled once. suppose you lose \$9 if the dice sum to 9 and win \$11 if the dice sum to 4 or 6. how much should you win or lose if any other number turns up in order for the game to be fair?

14. ## Maths

Two tetrahedral dice are thrown; one is red and the other is blue . The number on which each lands is noted, the faces being marked 1,2,3,4. Find the probability that the sum of the numbers on which the dice lands is 6 given that the red die lands on an

15. ## math

two dice are rolled find the probability of getting a 5 on either dice or the sum of both dice is 5

16. ## math

a cube of 6 cm is painted of all its 6 faces with red colour . it is then broken up into 216 smaller identical cubes .what is the number of smaller cubes with no coloured surface ,number of smaller cubes with 1 red face and number cubes with 2 red faces .

17. ## statistics math

two un biasedtetrahedral dice each have four faces number 1,2,3 and 4. the two dices are thrown together and the sum of the numbers on the faceson which they land is noted. Find the expected number of occasions on which the sum is 7 or more when the dice

18. ## math

A specially made pair of dice has only one- and two-spots on the faces. One of the dice has three faces with one-spot and three faces with two-spot. The other die has two faces with one-spot and four faces with a two-spot. One of the dice is selected at

19. ## 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 of the

20. ## 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,

21. ## 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,

22. ## math

A specially made pair of dice has only one- and two-spots on the faces. One of the dice has three faces with one-spot and three faces with two-spot. The other die has two faces with one-spot and four faces with a two-spot. One of the dice is selected at

23. ## Algebra

This question deals with Exponential Growth and Decay Test. Question:Consider the following:Start by tossing 30 dice. Then remove the dice that show 5s and 6s and toss the remaining dice. Repeat this process until you only have 2 dice remaining. The data

24. ## 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

25. ## statistics

two dices are tossed once. let the random variable be t he sum of the up faces on the dice. A). find and graph the probability distribution of the random variable. and b) calculate the mean (or expectation) of this distribution

26. ## 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 _____ .

27. ## 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 _____ .

28. ## spanish

"¿Qué me dices?" "____ que tengo razón." a. Os decimos b. Me dices c. Le dices d. Te digo D?

29. ## 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”?

30. ## English

I have two dice. I will roll the dice and according to the numbers on the faces of the dice, you should solve each problem in the space. (After rolling the dice). I got 1 and 7. Who is # 17? Stand up and solve the first problem in the first space on the

31. ## R

In the board game monopoly, a player tosses two dices together and the sum of the two dices points is the number of steps he or she should go. For example a player gets a 2 and a 3, then he or she should go 5 steps forward. If the two dices give the same

32. ## Rsutio

In the board game monopoly, a player tosses two dices together and the sum of the two dices points is the number of steps he or she should go. For example a player gets a 2 and a 3, then he or she should go 5 steps forward. If the two dices give the same

33. ## 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 1/6 1/6 1/9 ? 2/9 ?

34. ## Spanish

Miguel no _______ mucho. dices dicen decimos dice***

35. ## Probability

If the first dice yields an even number, what is the probability that the sum of the two dices will be equal to 12? 1st Die P(even) = 3/6 = 0.50 P(6|even) = 1/3 = 0.333 2nd Die P(6) = 1/6 = .1667 So P(12) = 0.5*0.33*0.1667 ?

36. ## Math

If the first dice yields an even number, what is the probability that the sum of the two dices will be equal to 12? 1st Die P(even) = 3/6 = 0.50 P(6|even) = 1/3 = 0.333 2nd Die P(6) = 1/6 = .1667 So P(12) = 0.33*0.1667 ?

37. ## Math

If the first dice yields an even number, what is the probability that the sum of the two dices will be equal to 12? 1st Die P(even) = 3/6 = 0.50 P(6|even) = 1/3 = 0.333 2nd Die P(6) = 1/6 = .1667 So P(12) = 0.33*0.1667 ?

38. ## statistics

In throwing a pair of dice The event of getting a sum of 5 in the upturned faces of dice.

39. ## Math(Probability)

Let X and Y equal the outcomes when two fair six-sided dice are rolled. Let W = X + Y. Assuming independence, find the p.m.f. of W when (a) The first die has three faces numbered 0 and three faces numbered 2, and the second die has its faces numbered 0, 1,

40. ## statistics

5. Consider the probabilities in problem 4. The probability that a randomly selected single book purchase will not be for a work of fiction is (a) 0.80 (b) 0.25 (c) 0.20 (d) 0.30 (e) 0.75 6. Two dice are rolled. Suppose A is the event the sum of the

41. ## math

A fair six sided dice has the faces numbered from 1 to 6. The dice is thrown 4 time. Calculate the probability of exactly 2 fives. the answer is 25/216

42. ## Spanish

6. Mi abuela tiene un abrigo de ____ en su guardarropa, pero casi nunca lo lleva. a. pelo b. madera c. piel d. algo C? 9. Dicen que el aire en el campo es más ______ que en la ciudad. a. contaminada b. puro c. guapo d. sucia Not sure.. 11. "¿Qué me

43. ## Pre Algebra

I have to design new dice for a board game. I have to use two standard cubes each with six faces and number then in such a way the the probability of rolling the numbers 1-12 are the same

44. ## mathematics

When you toss a die while playing a game, you can get 1, 2, 3, 4, 5, or 6 on the top face. How many possible combinations of the top faces for the dice are there if: a) you must toss 4 dice b) you must toss n dice

45. ## mathematics

When you toss a die while playing a game, you can get 1, 2, 3, 4, 5, or 6 on the top face. How many possible combinations of the top faces for the dice are there if a) you must toss 4 dice b) you must toss n dice

46. ## mathematics

When you toss a die while playing a game, you can get 1, 2, 3, 4, 5, or 6 on the top face. How many possible combinations of the top faces for the dice are there if: a) you must toss 4 dice b) you must toss n dice

47. ## mathematics

A dice with faces is showing a number 1 to 6 is tossdd four times. what is the total number of the possible outckmes. where an outcome is defined as sequence of the individual outcome of 1 to 6......Answer

48. ## Math

You can roll two dice at a time, a white one and a red one, and there are 36 different ways for the "up faces" to land. How many of ways will give a sum of 7 on the two up faces?

49. ## biology

One rule of probability can be expressed as the following: The probability of two independent events occurring simultaneously is the product of the probability of their occurring separately. If, for example, you had a pair of dice and rolled each die one

50. ## biology

One rule of probability can be expressed as the following: The probability of two independent events occurring simultaneously is the product of the probability of their occurring separately. If, for example, you had a pair of dice and rolled each die one

51. ## Algebra

Jill made two 6 sided dice and labeled each of them with these numbers. -3, -2, -1, 0, 1, 2 Suppose this pair of dice was tossed 1,000 times and the numbers on the two top faces were added. Which sum would probably be the most common? And why?

52. ## math

If four standard six-sided dice are rolled,what is the probability that the sum of the number on the top faces is 22, or 23,or 24,.express your answer as a common fraction

53. ## math

A pair of 6 sided fair dice are rolled. If one of the dice shows an odd number what is the probability of the sum of the dice being 7 ?

54. ## Algebra

This is my second post . I still don't get and it is due tomorrow! !! Jill made two 6 sided dice and labeled each od them with these numbers -3, -2, -1, 0, 1, 2 Suppose this pair of dice was tossed 1000 times and the numbers on the two top faces were

55. ## Math/ Probability

Please Help!!! 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 dice is showing a 5?

56. ## math

i'm supposed to make an equation going off of this problem.. it is supposed to be an exponential equation, but i don't exactly know how i am supposed to do this.. please help:(.. You roll 36 dice and remove the dice with one dot showing. You roll the

57. ## Elementary Statistics

10. In a game of “chuck a luck” three dice are rolled. If your number comes up on all three dice you win \$3. If your number comes up on two dice you win \$2. If your number comes up only once you win \$1. If your number doesn’t come up at all you lose

58. ## math

Consider a roll of two six sides dice. Let A be the event that the sum of the faces showing is 4. Let B be the event that one of the faces showing is 3. What is the union of A and B ? What is the intersection of A and B ?

59. ## statistics

in throwing two dice find the probability ofcoming even number on both probability of coming odd number on dice probability of different number on both dice

60. ## Probability plz help

Roszena rolls two standard six-sided dice. If the sum of the numbers on the top faces is not 6, what is the probability that the sum is 7? Express your answer as a rational number in lowest terms.

61. ## Math

An unusual die has six faces labelled 1,2,3,5,7 9. If two of these dice are rolled, and the numbers showing on the upper faces are added, what is the number of possible different sums? 14? Flora had an average of 56% on her first 7 exams. What would she

62. ## English

Playing the dice game, have a conversation about what you must do and what you must not do at each place. After that write down the rules as in the example. You should work in pairs. One should roll the dice and according to the number on the dice, he

63. ## Math

Two six-sided dice are rolled at the same time and the numbers showing are observed. Find the following. a. (P=sum of 8) 2 dice: (3,5) (5,3), (2,6), (6,2) c. P(sum is an odd number) 2 dice (1,5) (3,3) (5,1) I am lost here please help me with the further

64. ## Ｓｔａｔｉｓｔｉｃｓ

You are playing a board game in which severity of a plenty is determined by rolling three dice and adding spots on the up-face. The dice are all balanced so that each face is equally likely, and the three dice fall independently. If X1, X2, and X3 are the

65. ## Maths

Cam and Dean are playing a game with counters and dice. Cam has some counters, each labelled 1 on one side and 2 on the other. He flips the counters and scores the total of all the numbers showing. Dean has one die and scores the number showing after he

66. ## Prob

A game is played using three 6-sided dice. You throw these dice one time and if the dice all show the same number ( triples), you win \$ 40.00 . For this game to be “fair”, how much should a person pay to play this game ?

67. ## statistics

2. Two fair dice are rolled at the same time and the number of dots appearing on both dice is counted. Find the probability that the sum is A. 7 B. is an odd number greater than 6 C. is less than 2 D. Is more than 12 E. Is "Snake Eyes"

68. ## STATISTICS

You are playing a board game in which severity of a plenty is determined by rolling three dice and adding spots on the up-face. The dice are all balanced so that each face is equally likely, and the three dice fall independently. If X1, X2, and X3 are the

69. ## Math

Consider the following experiment. Start by tossing 30 dice.Then remove the dice that show 5s and 6s and toss the remaining dice.Repeat until you have 2 dice remaining. toss # 0 1 2 3 4 5 6 7 8 # of dice 30 20 15 11 8 6 4 3 2 Estimate the best function

70. ## Statistics

What is the probability of rolling a 10 with three dices. There are 6^3 = 216 possible permutations of throwing 3 dice. Of those possibilities, 27 add up to ten. They are: 1,3,6; 1,4,5; 1,5,4; 1,6,3; 2,2,6; 2,3,5; etc. up to ...6,2,2; 6,3,1 The probability

71. ## English

Roll the dice. If you get 3 on the face of the dice, move forward for 3 spaces. Roll the dice. If you have 3 on the face of the dice, move forward for 3 spaces. Roll the dice. If you get Number 3 on the face of the dice, move forward for 3 spaces. Roll the

72. ## 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 :)

73. ## Help me please Maths

Calvin is playing a game of Dungeons and Dragons. In order to make it across the river, he needs to throw six 4-sided dice, and have their sum be a multiple of 5. How many different dice throws result in Calvin making it across the river? Details and

74. ## Math statistisc

I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times

75. ## Math statistisc

I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times

76. ## Math statistisc

I have a 6 sided dice with numbers 1 to 6 written on faces. What number(s) would have to show up if you rolled the die five times in order to have the smallest possible standard deviation? What number(s) would have to show up if you rolled the die 5 times

77. ## Math

Which statement is true about all prisms? A. Prisms have a pair of opposite faces B. The faces of a prism are congruent C. Prims have the same number of verticrs as edges D. The base of a prism is larger then the other faces.

78. ## 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?

79. ## Statistics 107

If two dice are rolled simultaneously, what is the probability that the number is the same on both dice?

80. ## maths

find the probabily of having atleast two same number on throwing of three dices

81. ## Geomatry

Which Solid can be defined as the regular polyhedron (a solid with all faces identical regular polygons) with the greatest number of faces? Please help thank you http://en.wikipedia.org/wiki/Regular_polyhedra There are nine regular polyhedra. Choose the

82. ## mathematics

Peter has two fair tetrahedral (four sided) dice. The faces on each die are labeled l, 2, 3 and 4. One die is red and another is blue. Peter throws each die once. The random variable X is the sum of the numbers on which the dice land. a) Construct a

83. ## Math

Find the number of vertices in a polyhedron if it contains 20 triangular faces and 12 pentagonal faces. a. 30 b. 32 c. 60 d. 120 * Also please show me how you got your answer, thanks

84. ## Probability

You roll two dice. What is the probability that the sum of the dice is even and one die shows a 4? A 6x6 table of dice outcomes will help you to answer this question. A. 1/6. B. 5/18. C. 2/3. D. 5/36.

85. ## Math

A pair of fair dice is rolled once. Suppose that you lose ​\$8 if the dice sum to 7 and win ​\$12 if the dice sum to 10 or 6. How much should you win or lose if any other number turns up in order for the game to be​ fair?

86. ## Math

Elizabeth has two identical number cubes. both cubes have faces number one through six. if Elizabeth rolls each cube months what is the probability that the sum of the numbers on the top faces will be 10?

87. ## Computer Science Java

I have to write program for a dice game and use a boolean variable in the application class of the dice game that equals true when snake eyes, doubles, and box cars have been meet. I am having a little trouble doing that in my application class so I was

88. ## Finite Math

Bill and Fred are betting on the outcome when two fair dice are rolled. If the dice sum is any even number, other than 8, Bill pays Fred \$8. If the dice sum is 8, Bill pays Fred \$1. If the dice sum is odd, Fred pays Bill \$2. What is Fred's expected payoff

89. ## algebra

two dice are rolled. if a 3 appears on either dice,then the two dice are rolled again and the two dice are added togather. if a 3 does not appear, then we ll add the two dice togather. if the sum of two dice is even ,i win and if the sum is odd,you win.

90. ## 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?

91. ## math- check

please check: this deals with a rectangular prism: RECTANGULAR PRISM HAS (6 FACES) 4 FACES ARE FORMED BY RECTANGLES 2 FACES ARE FORMED BY SQUARES A RECTANGULAR PRISM HAS 12 EDGES A RECTANGULAR PRISM HAS 8 VERTICES t FOR TRUE, f FOR FALSE T : IT HAS NO

92. ## Math- Alg 2

Help finding probability involving combinations? What is the probability of winning in this game ( Show calculation and all works) - The board is a number ranging from 1 - 12 - Player place a coin in the desire number 1,2,3,4 etc. - Roll 2 dice - To win

93. ## AP Statistics

The game Chuck-A-Luck is played as follows: A player bets \$M on an integer chosen from 1-6 and then rolls three dice. If the number appears on exactly on die, then the player wins the amount bet. The player wins twice the amount bet if the umber appears on

94. ## 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

95. ## math

a die is rolled in such a way that even faces are twice as likely to occur as the odd faces. what is the probability that a prime number shows up when rolled?

96. ## Math

Juan has two number cubes, each with faces 1,2,3,4,5,6. What is the probability he can roll the cubes so that the sum of the faces showing equals 11?

97. ## Spanish

How would you conjugate the verb "decir" which means to say, to the "yo" form? Would it be digo? Or dico? Please help! Thank you for using the Jiskha Homework Help Forum. The verb "decir" is irregular in the "yo" form of the Present Indicative Tense: digo,

98. ## statistics

I am trying to determine if the dice that I have is fair, so I will toss the dice 300 times and measure how many times each side appears. Here are my results: Side : Frequency 1 : 43 2 : 49 3 : 56 4 : 45 5 : 66 6 : 41 Looking at the data, is the dice

99. ## Physics algebra and trig

A pair of fuzzy dice is hanging from the rearview mirror of a race car. As the car accelerates smoothly, the strings of the dice are tilted slightly toward the rear of the car. From the perspective of the driver, which one of the following statements is

100. ## 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?