CS-6201 - Discrete Structures oed answer key
Showing 101 to 106 of 106 total answers.
#CS-6201
Awesome StudentQuestion • Discrete Structures 2
In a survey of 900 likely voters, the following question was asked: Do you support using cameras to identify red-light runners? The results of the survey follow: AnswerStrongly supportSomewhatsupportSomewhat opposeStronglyOpposeDon't knowRespondents4102129516419 What is the probability that a person in the survey selected at random favors using cameras to identify red-light runners?
Answer
069
#CS-6201
Awesome StudentQuestion • Discrete Structures 2
Suppose that P is the statement "n + 1 = n + 2". What is wrong with the following proof that the statement P is true for all non negative integers n?You assume that P(k) is true for some positive integer k, that is, that k+1 = k+2. Then you add 1 to both sides of this equation to obtain k+2 = k+3; therefore P(k+1) is true. By the principle of mathematical induction P is true for all non-negative integers n.
Answer
The proof is incorrect because there is no basis step
#CS-6201
Awesome StudentQuestion • Discrete Structures 2
Let P be the statement "you can make n cents postage using 3-cent and 5-cent stamps." Suppose you want to use the Principle of Mathematical Induction to show that P is true for all n =E2=89=A5 8.You begin by proving P(8), which is true because 8 cents postage can be made with one 3-cent stamp and one 5-cent stamp.Which of the following will show that the implication P(k) -> P(k+1) in the inductive step is true for all k =E2=89=A5 8?
Answer
none of the given
#CS-6201
Awesome StudentQuestion • Discrete Structures 2
The following breakdown of a total of 18,686 transportation fatalities that occured in 2007 was obtained from records compiled by the U.S. Department of Transportation (DOT).Mode of Transportation Car Train Bicycle PlaneNumber of Fatalities 16,525842698538 What is the probability that a victim randomly selected from this list of transportation fatalities for 2007 died in a train or a plane accident? Round answer to two decimal places.
Answer
007
#CS-6201
Awesome StudentQuestion • Discrete Structures 2
An experiment consists of casting a pair of dice and observing the number that falls uppermost on each die. We may represent each outcome of the experiment by an ordered pair of numbers, the first representing the number that appears uppermost on the first die and the second representing the number that appears uppermost on the second die. Consider the sample space Determine the event that the sum of the numbers falling uppermost is greater than or equal to 7.
Answer
{(1, 6), (2, 5), (2, 6), (3, 4), (3, 5), (3, 6), (4, 3), (4, 5), (4, 6), (5, 2), (5, 3), (5, 4), (5, 5), (5, 6), (6, 1), (6, 2), (6, 3), (6, 4), (6, 5), (6, 6)}
#CS-6201
Awesome StudentQuestion • Discrete Structures 2