QMB3200 Actual Exam
Questions With Reviewed 100%
Correct Detailed Answers
Guaranteed Pass
1. The mean, median, and mode have the same value for which of the following
probability distributions?
a. normal
b. exponential
c. uniform
d. Poisson - ANSWER A
2. Excel's __________ function can be used to compute the expected value of a
discrete random variable.
a. VAR
b. MEDIAN
c. SUMPRODUCT
d. AVERAGE - ANSWER C
3. The variance is a weighted average of the
a. squared deviations from the mean
b. square root of the deviations from the mean
c. square root of the deviations from the median
,d. squared deviations from the median - ANSWER A
4. The variance for the binomial probability distribution is
a. Var(x) = np(1 − p)
b. Var(x) = n(1 − p)
c. Var(x) = p(1 − p)
d. Var(x) = np - ANSWER A
5. A name closely associated with the binomial probability distribution is
a. Pareto
b. Poisson
c. Bernoulli
d. de Moivre - ANSWER C
6. A description of how the probabilities are distributed over the values the
random variable can assume is called a
a. probability function
b. expected value
c. probability distribution
d. random variable - ANSWER C
7. A probability distribution showing the probability of x successes in n trials,
where the probability of success does not change from trial to trial, is termed a
a. normal probability distribution
b. uniform probability distribution
,c. hypergeometric probability distribution
d. binomial probability distribution - ANSWER D
8. A numerical description of the outcome of an experiment is called a
a. random variable
b. descriptive statistic
c. variance
d. probability function - ANSWER A
9. Which of the following is not a property of a binomial experiment?
a. the probabilities of the two outcomes can change from one trial to the next
b. the trials are independent
c. each outcome can be referred to as a success or a failure
d. the experiment consists of a sequence of n identical trials - ANSWER A
10. Which of the following is not a characteristic of an experiment where the
binomial probability distribution is applicable?
a. the experiment has a sequence of n identical trials
b. the probabilities of the outcomes do not change from one trial to another
c. exactly two outcomes are possible on each trial
d. the trials are dependent - ANSWER D
11. When using Excel's BINOM.DIST function, one should choose TRUE for the
fourth input if
a. the expected value is desired
, b. the correct answer is desired
c. a probability is desired
d. a cumulative probability is desired - ANSWER D
12. The binomial probability distribution is most symmetric when
a. p approaches 1
b. n equals p
c. n is 30 or greater
d. p equals 0.5 - ANSWER D
13. The mean, median, and mode have the same value for which of the following
probability distributions?
a. normal
b. exponential
c. uniform
d. Poisson - ANSWER A
13. The assembly time for a product is uniformly distributed between 6 to 10
minutes. The expected assembly time (in minutes) is
a. 8
b. 16
c. 2
d. 4 - ANSWER A
Questions With Reviewed 100%
Correct Detailed Answers
Guaranteed Pass
1. The mean, median, and mode have the same value for which of the following
probability distributions?
a. normal
b. exponential
c. uniform
d. Poisson - ANSWER A
2. Excel's __________ function can be used to compute the expected value of a
discrete random variable.
a. VAR
b. MEDIAN
c. SUMPRODUCT
d. AVERAGE - ANSWER C
3. The variance is a weighted average of the
a. squared deviations from the mean
b. square root of the deviations from the mean
c. square root of the deviations from the median
,d. squared deviations from the median - ANSWER A
4. The variance for the binomial probability distribution is
a. Var(x) = np(1 − p)
b. Var(x) = n(1 − p)
c. Var(x) = p(1 − p)
d. Var(x) = np - ANSWER A
5. A name closely associated with the binomial probability distribution is
a. Pareto
b. Poisson
c. Bernoulli
d. de Moivre - ANSWER C
6. A description of how the probabilities are distributed over the values the
random variable can assume is called a
a. probability function
b. expected value
c. probability distribution
d. random variable - ANSWER C
7. A probability distribution showing the probability of x successes in n trials,
where the probability of success does not change from trial to trial, is termed a
a. normal probability distribution
b. uniform probability distribution
,c. hypergeometric probability distribution
d. binomial probability distribution - ANSWER D
8. A numerical description of the outcome of an experiment is called a
a. random variable
b. descriptive statistic
c. variance
d. probability function - ANSWER A
9. Which of the following is not a property of a binomial experiment?
a. the probabilities of the two outcomes can change from one trial to the next
b. the trials are independent
c. each outcome can be referred to as a success or a failure
d. the experiment consists of a sequence of n identical trials - ANSWER A
10. Which of the following is not a characteristic of an experiment where the
binomial probability distribution is applicable?
a. the experiment has a sequence of n identical trials
b. the probabilities of the outcomes do not change from one trial to another
c. exactly two outcomes are possible on each trial
d. the trials are dependent - ANSWER D
11. When using Excel's BINOM.DIST function, one should choose TRUE for the
fourth input if
a. the expected value is desired
, b. the correct answer is desired
c. a probability is desired
d. a cumulative probability is desired - ANSWER D
12. The binomial probability distribution is most symmetric when
a. p approaches 1
b. n equals p
c. n is 30 or greater
d. p equals 0.5 - ANSWER D
13. The mean, median, and mode have the same value for which of the following
probability distributions?
a. normal
b. exponential
c. uniform
d. Poisson - ANSWER A
13. The assembly time for a product is uniformly distributed between 6 to 10
minutes. The expected assembly time (in minutes) is
a. 8
b. 16
c. 2
d. 4 - ANSWER A
