IEE 380 HW Concepts Question and
answers already passed 2025/2026
The sample space of a random experiment contains all of the possible outcomes. - correct answer
✔true
An event is a subset of the sample space of a random experiment. - correct answer ✔true
If a sample space consists of N possible outcomes that are equally likely, the probability of each
outcome is 1/N. - correct answer ✔true
For a discrete sample space the probability of an event is the sum of all of the probabilities of the
outcomes associated with the event. - correct answer ✔true
Two events A and B are independent with P(A) = P(B) = 0.5. The P(A N B) is: - correct answer ✔.25
Random variables can be either discrete or continuous. - correct answer ✔true
Calls are repeatedly placed to a busy phone line until a connect is achieved. Let c=connect and b=busy,
select the correct sample space, S, below: - correct answer ✔S={c, bc, bbc, bbbc, ... }
The probability mass function of a discrete random variable is a description of the probabilities
associated with each possible value of the random variable. - correct answer ✔true
The sum of all of the probabilities in a probability mass function equals unity. - correct answer ✔true
answers already passed 2025/2026
The sample space of a random experiment contains all of the possible outcomes. - correct answer
✔true
An event is a subset of the sample space of a random experiment. - correct answer ✔true
If a sample space consists of N possible outcomes that are equally likely, the probability of each
outcome is 1/N. - correct answer ✔true
For a discrete sample space the probability of an event is the sum of all of the probabilities of the
outcomes associated with the event. - correct answer ✔true
Two events A and B are independent with P(A) = P(B) = 0.5. The P(A N B) is: - correct answer ✔.25
Random variables can be either discrete or continuous. - correct answer ✔true
Calls are repeatedly placed to a busy phone line until a connect is achieved. Let c=connect and b=busy,
select the correct sample space, S, below: - correct answer ✔S={c, bc, bbc, bbbc, ... }
The probability mass function of a discrete random variable is a description of the probabilities
associated with each possible value of the random variable. - correct answer ✔true
The sum of all of the probabilities in a probability mass function equals unity. - correct answer ✔true
