Quantitative Research Techniques and
Statistics- Questions and Answers 100%
Accurate
Which of the following best describes the concept of marginal probability? - ANSWER-It
is a measure of the likelihood that a particular event will occur, regardless of whether
another event occurs.
The intersection of events A and B is the event that occurs when - ANSWER-both A and
B occur.
If the outcome of event A is not affected by event B, then events A and B are said to be
- ANSWER-independent.
Suppose P(A) = 0.35. The probability of the complement of A is - ANSWER-0.65.
If the events A and B are independent with P(A)=0.30 and P(B)=0.40, then the
probability that both events will occur simultaneously is - ANSWER-0.12
If A and B are mutually exclusive events with P(A) = 0.30 and P(B)=0.40, then P(A or B)
is - ANSWER-0.70
Bayes' Law is used to compute - ANSWER-posterior probabilities.
Initial estimates of the probabilities of events are known as - ANSWER-prior
probabilities.
An approach of assigning probabilities which assumes that all outcomes of the
experiment are equally likely is referred to as the - ANSWER-classical approach.
The collection of all possible outcomes of an experiment is called - ANSWER-a sample
space
The significance level of a statistical inference measures - ANSWER-the proportion of
times a conclusion about a population will be wrong in the long run
The confidence level of a statistical inference measures - ANSWER-the proportion of
times an estimation procedure will be correct in the long run
A marketing research firm selects a random sample of adults and asks them a list of
questions regarding their beverage preferences. What type of data collection is involved
here? - ANSWER-A Survey
Statistics- Questions and Answers 100%
Accurate
Which of the following best describes the concept of marginal probability? - ANSWER-It
is a measure of the likelihood that a particular event will occur, regardless of whether
another event occurs.
The intersection of events A and B is the event that occurs when - ANSWER-both A and
B occur.
If the outcome of event A is not affected by event B, then events A and B are said to be
- ANSWER-independent.
Suppose P(A) = 0.35. The probability of the complement of A is - ANSWER-0.65.
If the events A and B are independent with P(A)=0.30 and P(B)=0.40, then the
probability that both events will occur simultaneously is - ANSWER-0.12
If A and B are mutually exclusive events with P(A) = 0.30 and P(B)=0.40, then P(A or B)
is - ANSWER-0.70
Bayes' Law is used to compute - ANSWER-posterior probabilities.
Initial estimates of the probabilities of events are known as - ANSWER-prior
probabilities.
An approach of assigning probabilities which assumes that all outcomes of the
experiment are equally likely is referred to as the - ANSWER-classical approach.
The collection of all possible outcomes of an experiment is called - ANSWER-a sample
space
The significance level of a statistical inference measures - ANSWER-the proportion of
times a conclusion about a population will be wrong in the long run
The confidence level of a statistical inference measures - ANSWER-the proportion of
times an estimation procedure will be correct in the long run
A marketing research firm selects a random sample of adults and asks them a list of
questions regarding their beverage preferences. What type of data collection is involved
here? - ANSWER-A Survey
