Logic And Probability Test Quiz!

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| By Pam Agapay

Pam Agapay

Community Contributor

Quizzes Created: 3 | Total Attempts: 3,037

Questions: 15 | Attempts: 405 | Updated: Mar 20, 2023

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Questions and Answers

1.

It is the study of reasoning.
- A.
  
  Logic
- B.
  
  Probability
- C.
  
  Proofs
- D.
  
  Condition
Correct Answer
A. Logic

Explanation
Logic is the correct answer because it is the study of reasoning. Logic involves analyzing and evaluating arguments, identifying valid and invalid reasoning, and determining the consistency and coherence of statements. It helps in understanding how to think critically and make sound judgments based on evidence and logical principles. Probability, proofs, and conditions are related concepts but do not encompass the broad study of reasoning like logic does.

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2.

It is the study of chances.
- A.
  
  Logic
- B.
  
  Probability
- C.
  
  Proofs
- D.
  
  Conditions
Correct Answer
B. Probability

Explanation
The given answer "probability" is the correct answer because it aligns with the statement "it is the study of chances." Probability is the branch of mathematics that deals with the likelihood of events occurring. It involves analyzing and quantifying uncertainty, making it the appropriate choice for the study of chances. The other options, logic, proofs, and conditions, do not directly relate to the study of chances.

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3.

It outputs true if both statements are true.
- A.
  
  And
- B.
  
  Biconditional
- C.
  
  Conditional
- D.
  
  Or
Correct Answer
A. And

Explanation
The correct answer is "And" because the statement "It outputs true if both statements are true" indicates that both statements must be true in order for the output to be true. The "And" operator is used to combine two conditions and returns true only if both conditions are true.

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4.

It outputs true even if just one statement is true.
- A.
  
  And
- B.
  
  Biconditional
- C.
  
  Conditional
- D.
  
  Or
Correct Answer
D. Or

Explanation
The correct answer is "Or" because the "Or" operator returns true if at least one of the statements is true. In this case, it means that even if just one statement is true, the output will be true. The other operators mentioned (Biconditional and Conditional) have different conditions for returning true, so they do not fit the given explanation.

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5.

This is the truth table for?
- A.
  
  And
- B.
  
  Biconditional
- C.
  
  Conditional
- D.
  
  Or
Correct Answer
C. Conditional

Explanation
The given truth table represents the logical operator "Conditional". In a conditional statement, also known as an implication, the truth value of the second proposition is dependent on the truth value of the first proposition. If the first proposition is true, then the second proposition is also true. However, if the first proposition is false, the truth value of the second proposition can be either true or false. Therefore, the correct answer is "Conditional".

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6.

An existential quantifier will only output True if none of the answers is False.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
An existential quantifier outputs True if at least one answer is True. In other words, it only requires one True answer among the options to produce a True output. Therefore, the given statement is incorrect, and the correct answer is False.

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7.

What is the permutation of 4?
- A.
  
  6
- B.
  
  8
- C.
  
  12
- D.
  
  24
Correct Answer
D. 24

Explanation
The permutation of 4 refers to the number of different arrangements or orderings that can be made using the digits 1, 2, 3, and 4. In this case, the correct answer is 24 because there are 24 possible permutations when arranging these four digits.

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8.

A universal quantifier will already be false once one of the evaluation is false.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
A universal quantifier is a logical operator that asserts that a statement is true for every element in a given set. In other words, it requires that the statement holds true for all elements. If even a single evaluation of the statement is false, then the universal quantifier as a whole is false. Therefore, the given statement is true, as it correctly states that a universal quantifier will already be false if one of the evaluations is false.

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9.

If x = T , y = F and z= T , what is Not(X and Y ) Or Z.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The expression "Not(X and Y) Or Z" evaluates to True because "Not(X and Y)" is True when both X and Y are False, and in this case, X is True and Y is False. Therefore, "Not(X and Y)" is True. The "Or" operator returns True if at least one of the operands is True, and in this case, Z is True. Hence, the overall expression is True.

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10.

If x = T , y =T and z= T , what is Not((X and Y ) Or Z).
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
The expression "Not((X and Y) Or Z)" can be simplified by evaluating the inner part first. Since both X and Y are true, the expression "X and Y" is true. Then, when we evaluate "(X and Y) Or Z", the result is true because at least one of the operands is true. Finally, by applying the "Not" operator, the result is false. Therefore, the correct answer is false.

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11.

What is the permutation of 5?
- A.
  
  25
- B.
  
  50
- C.
  
  120
- D.
  
  250
Correct Answer
C. 120

Explanation
The permutation of 5 can be found using the formula n! / (n-r)!, where n is the total number of items and r is the number of items to be selected. In this case, we have 5 items and we want to find the permutation of all 5 items, so r is also 5. Plugging these values into the formula, we get 5! / (5-5)! = 5! / 0! = 5! / 1 = 5 x 4 x 3 x 2 x 1 / 1 = 120. Therefore, the correct answer is 120.

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12.

In how many ways can we arrange A B and C?
- A.
  
  3
- B.
  
  6
- C.
  
  9
- D.
  
  12
Correct Answer
B. 6

Explanation
There are three letters (A, B, and C) that need to be arranged. Since each letter can be arranged in one of three positions, there are a total of 3 x 3 x 3 = 27 possible arrangements. However, since the order of the letters does not matter (e.g. ABC is the same as BAC), we need to divide this by the number of ways the letters can be arranged within each group of three. Each group can be arranged in 3! = 3 x 2 x 1 = 6 ways. Therefore, the total number of unique arrangements is 27 / 6 = 6.

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13.

If there are 2 pencils and 3 cases. How many ways can we pair up a case and a pencil?
- A.
  
  2
- B.
  
  4
- C.
  
  6
- D.
  
  8
Correct Answer
C. 6

Explanation
There are 2 pencils and 3 cases, and we need to pair up a case and a pencil. Since each case can be paired with any of the 2 pencils, we have 3 cases to choose from for the first pair, and 2 pencils to choose from for each case. Therefore, the total number of ways we can pair up a case and a pencil is 3 x 2 = 6.

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14.

What is the probability of getting a King and a Queen from a deck of cards?
- A.
  
  2/26
- B.
  
  2/13
- C.
  
  4/13
- D.
  
  1/12
Correct Answer
B. 2/13

Explanation
The probability of getting a King and a Queen from a deck of cards can be calculated by dividing the number of favorable outcomes (2) by the total number of possible outcomes (52). There are 4 Kings and 4 Queens in a deck of cards, but since we only need one King and one Queen, we multiply the probabilities of getting a King (4/52) and a Queen (4/51), which simplifies to 2/13.

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15.

What is the probability of getting a Red Card?
- A.
  
  1/2
- B.
  
  1/3
- C.
  
  1/4
- D.
  
  1/5
Correct Answer
A. 1/2

Explanation
The probability of getting a Red Card is 1/2 because there are two possible outcomes - getting a Red Card or not getting a Red Card. Since there is only one Red Card in the deck, and a total of two cards (Red Card and non-Red Card), the probability of getting a Red Card is 1 out of 2, which can be simplified to 1/2.

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Current Version
Mar 20, 2023

Quiz Edited by
ProProfs Editorial Team
Dec 17, 2018

Quiz Created by
Pam Agapay

Logic And Probability Test Quiz!

It is the study of reasoning.

It is the study of chances.

It outputs true if both statements are true.

It outputs true even if just one statement is true.

This is the truth table for?

An existential quantifier will only output True if none of the answers is False.

What is the permutation of 4?

A universal quantifier will already be false once one of the evaluation is false.

If x = T , y = F and z= T , what is Not(X and Y ) Or Z.

If x = T , y =T and z= T , what is Not((X and Y ) Or Z).

What is the permutation of 5?

In how many ways can we arrange A B and C?

If there are 2 pencils and 3 cases. How many ways can we pair up a case and a pencil?

What is the probability of getting a King and a Queen from a deck of cards?

What is the probability of getting a Red Card?