Sets, Counting & Probability

Problem: How many poker hands consist of four clubs and a card of a different suit? a. 48 * C(13,4) b. 39 * C(52,4) c. 48 * C(52,4) d. 39 * C(13,4)

Sets, Counting & Probability

Problem: Which of the following is a valid probability distribution for a sample space S = {a,b,c,d} a. Pr(a)=-0.2, Pr(b)=0.5, PR(c)=0.4, PR(d)=0.3 b. Pr(a)=0.3, PR(b)=0.1, Pr(c)-0.2, Pr(d)=0.5 c. Pr(a)=0.6, Pr(b)=0, Pr(c)=0.3, Pr(d)=0.1 d. Pr(a)=0.5, Pr(b)=0.2, Pr(c)=0.1, Pr(d)=0.3

Sets, Counting & Probability

Problem: Five horses are running at a race track. Being an inexperienced bettor, you assume that every order of finsih is equally likely. You bet that Son-of-a-Gun will win and that Gentle Lady will come in second. The probability that you will win both bets is: 9/20 1/20 2/5 1/25

Sets, Counting & Probability

Problem: A shipment of twenty radios contains six defective radios. Two radios are randomely selected from the shipment. The probability that both radios are defective is: 14/7 1/3 15/19 3/10

Sets, Counting and Probability

Problem: The result of using De Morgan's Law to Simplify (S' intersection of T") is: ? a. S' union of T b. S union of T' c. S intersection of T' d. S' instersection of T e. None of the above

Sets, Counting & Probability

Problem: Consider the following sets: U = {1,2,3,4,5,6,7,8} A = {2,4,6,8} B = {1,2,3,5,7} Which of the following statements is true? a. A intersection of B is the subset of A b. A intersection of B = 0 c. A is the subset of A intersection of B d. A intersection of B = U

Probability & Statistics

Problem: The test scores of 30 students are listed Below. Find Q3; 31 41 45 48 52 55 56 56 63 65 67 67 69 70 70 74 75 78 79 79 80 81 83 85 85 87 90 92 95 99

Probability & Statistics

Problem: Let X denote the number of boys in a family with four children. Pr(X>3) is: ?

Probability & Statistics

Problem: Your score on three tests are 76,88, and 72. Your grade on the final exam will count twice as much as any one test grade in determining your average grade for the course. In order for your average grade for the course to be 82, your grade on the final exam must be: ? a. 85 b. 87 c. 77 d. 92 e. none of the abo ...continues

Probability & Statistics

Problem: Suppose the probability that a federal income taz return conatins an arithemetic error is 0.2. If 10 federal income tax returns are selected at random, the probability that fewer than two of them will conatin errors is: