A, B and C are three mutually exclusive and exhaustive events. P(A) = 2P(B) = 6P(C). Find P(B).
0.3
Let P(A) = 2x, P(B) = x, P(C) = x/3. Since A, B, and C are mutually exclusive and exhaustive events, P(A) + P(B) + P(C) = 1. 2x + x + x/3 = 1 10x/3 = 1 x = 3/10 = 0.3 P(B) = x = 0.3
Important Questions from Data Collection Instrument
Which of the following could be problems with consumer interviews?
A. A non-random sample
B. The identification problem
C. Response bias
Choose the most appropriate answer from the options given below:
- Which of the following is not a method of collecting primary data?
In a questionnaire, how many answers should be there for simple alternative questions?
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Filter questions in questionnaire measure the familiarity of the respondents with the topic of research.
Reason (R): Questions that try to capture multiple information at once are referred to as leading questions.
In the light of the above statements, choose the most appropriate answer from the options given below:
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: Data must be authentic before it can be of any value in historical research, yet proof of authenticity does not establish its value, it must also be accurate.
Reason R: External criticism is, therefore, referred to as lower criticism of the data.
In the light of the above statements, choose the most appropriate answer from the options given below
