BUAL 2600 EXAM 2 GUPTA QUESTIONS AND
ANSWERS 2026
A ________ is a measure of the chance that an uncertain event will occur. - Answers -
probability
The ________ of two events X and Y is another event that consists of the sample space
outcomes belonging to either event X or event Y or both events X and Y. - Answers -
union
P(AUB) = P(A) + P(B) − P(A∩B) represents the formula for the ________. - Answers -
addition rule
A process of observation that has an uncertain outcome is referred to as a(n)
________. - Answers - experiment
A probability may be interpreted as a long-run ________ frequency. - Answers - relative
A(n) ________ probability is a probability assessment that is based on experience,
intuitive judgment, or expertise. - Answers - subjective
Probabilities must be assigned to sample space outcomes so that the probability
assigned to each sample space outcome must be between ________, inclusive. -
Answers - 0 and 1
Which of the following is a valid probability value for a discrete random variable? -
Answers - .2
The variable Employment Status, which can take either the value 1 for Employed or 0
for Unemployed, is an example of a ________ random variable. - Answers - √npq.
A discrete variable that can often be used to describe the number of occurrences of an
event over a specified interval of time or space is a ________ random variable. -
Answers - Poisson
A random variable that is defined to be the total number of successes in n trials is a
________ random variable. - Answers - binomial
When p = .5, the binomial distribution will ________ be symmetric. - Answers - always
A fair die is rolled 10 times. What is the average number of even number outcomes? -
Answers - 5
ANSWERS 2026
A ________ is a measure of the chance that an uncertain event will occur. - Answers -
probability
The ________ of two events X and Y is another event that consists of the sample space
outcomes belonging to either event X or event Y or both events X and Y. - Answers -
union
P(AUB) = P(A) + P(B) − P(A∩B) represents the formula for the ________. - Answers -
addition rule
A process of observation that has an uncertain outcome is referred to as a(n)
________. - Answers - experiment
A probability may be interpreted as a long-run ________ frequency. - Answers - relative
A(n) ________ probability is a probability assessment that is based on experience,
intuitive judgment, or expertise. - Answers - subjective
Probabilities must be assigned to sample space outcomes so that the probability
assigned to each sample space outcome must be between ________, inclusive. -
Answers - 0 and 1
Which of the following is a valid probability value for a discrete random variable? -
Answers - .2
The variable Employment Status, which can take either the value 1 for Employed or 0
for Unemployed, is an example of a ________ random variable. - Answers - √npq.
A discrete variable that can often be used to describe the number of occurrences of an
event over a specified interval of time or space is a ________ random variable. -
Answers - Poisson
A random variable that is defined to be the total number of successes in n trials is a
________ random variable. - Answers - binomial
When p = .5, the binomial distribution will ________ be symmetric. - Answers - always
A fair die is rolled 10 times. What is the average number of even number outcomes? -
Answers - 5
