# Quantitative Methods - Quantitative Methods Section 2

>>>>>>>>Quantitative Methods Section 2

• A

P(A|B) = P(A).  • B

P(AB) = P(A) x P(B).  • C

P(A or B) = P(A) + P(B).  • Option : C
• Explanation : Mutually exclusive events are those events which cannot happen together, i.e. there is no intersection between the two events. Therefore, both P (A|B) and P (AB) must be equal to zero

• A

negative one and positive one.  • B

zero and positive infinity.  • C

zero and positive one.  • Option : C
• Explanation : The two defining properties of a probability are as follows: The probability of any event, E, is a number between 0 and 1. The sum of the probabilities of any set of mutually exclusive and exhaustive events equals one.

• A

a priori.  • B

empirical.  • C

subjective.  • Option : B
• Explanation : An empirical probability is “a probability estimated from data as a relative frequency of occurrence.”.

• A

a priori.  • B

empirical.  • C

subjective.  • Option : A
• Explanation : A probability obtained based on logical analysis is a priori probability

• Option : C
• Explanation : Empirical: it is based on past data.
A Priori: it is based on logical reasoning.
Subjective: it is based on personal judgment.