1. Three 6-sided dice are tossed. Let X denote the sum of the 3 values that occur.
(a) How many ways can we have X = 3.
(b) How many ways can we have X = 4.
(c) How many ways can we have X = 5.
(d) How many ways can all three dice give the same value?
(e) How many ways can the dice give three distinct values?
(f) How many ways can the first toss be the largest of the three values (that is, the first toss is equal to or larger than the others)?
2. Four married couples are seated at a circular table, alternating in seats by sex. How many ways can the couples be seated so that no one sits next to his or her spouse?
1. Three 6-sided dice are tossed. Let X denote the sum of the 3 values that...
Two fair 6-sided dice are tossed. Let X denote the number appearing on the first die and let y denote the number appearing on the second die. Show that X, Y are independent by showing that P(X = x, Y = y) = P(X = x) x P(Y = y) for all (x,y) pairs.
Let S(sub k) denote the event that the sum of three fair typical six-sided dice is k. Assume that one die is red, one is green and one is blue so that the three dice are distinguishable. Compute P(S(sub k), for all values of k.
You have a pair of 4-sided dice. The four sides of each die are numbered 1, 2. 3, and 4. Each time the pair of dice is rolled, you add the numbers from each die. Out of all the possible ways the dice can land, how many of them give you a sum of 5? Number How many ways give you a sum of 8? Number What is the probability of rolling a sum of 7 with these dice? Number
discrete math
1. Suppose that three friends, all heavy smokers, each have a 50-50 chance of developing lung cancer (a) Tracking whether each of the friends develops hung cancer, write down the sample space by listing its elements. Be clear about any notation that you choose to use. (b) What is the probability that exactly one of the friends develops lung cancer? (c) What is the probability that at least two of the friends develop lung cancer? 2. Six people...
The Dice game of "Pig" can be played with the following rules. 1. Roll two six-sided dice. Add the face values together. 2. Choose whether to roll the dice again or pass the dice to your opponent. 3. If you pass, then you get to bank any points earned on your turn. Those points become permanent. If you roll again, then add your result to your previous score, but you run the risk of losing all points earned since your...
Please answer 1 and 2 show all work!!!!
1) (6pts) Three married couples have purchased theater tickets and are seated in a row consisting of just six seats. a) How many different seating arrangements are possible? TOTAL: How many different seating arrangéments have the three men (in order) in the three leftmost seats? any b) TOTAL c) Assume the theater-goers take their seats in a completely random fashion. Then each of the seating arrangements in part a) are equally likely....
discrete math do all please
2. Six people attend the theater together and sit in a row with exactly six seats. (a) In how many ways can they be seated together in the row? (b) Suppose one of the six is a doctor who must sit in a specific aisle seat in case she is paged. How many ways can the people be seated together in the row with the doctor in the aisle seat? (c) Suppose the six people...
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6. It is common in many industrial areas to use a filling machine to ill boxes full of product This occurs in the food industry as well as other areas in which the product is used in the home, for example, detergent. These machines are not perfect, and indeed they may A, fill to specification, B, underfill, and C, overfill. Generally the practice of underfilling is that which one hopes...
1. We roll two fair 6-sided dice. Compute the probabilities of the following events. (a) The sum is at most 6. (b) The sum is more than 6. (c) The sum is at most 6 and at least one die is a 4. 2. Consider the letters a,b,c. Suppose we draw 2 of the letters at random (allowing for repetition). Assume order matters. That is, ab is not the same as ba: Let A : The 2 letters are distinct....
The next three questions (5 to 8) refer to the following: An unfair coin is tossed three times. For each toss, the probability that the coin comes up heads is 0.6 and the probability that the coin comes up tails is 0.4. If we let X be the number of coin tosses that come up heads, observe that the possible values of X are 0, 1, 2, and 3. Find the probability distribution of X. Hint: the problem can be...