MSIS 3223 MANAGEMENT INFORMATION SYSTEMS EXAMINATION TEST 2026 COMPLETE QUESTIONS AND SOLUTIONS 100% CORRECT

MSIS 3223 MANAGEMENT INFORMATION
SYSTEMS EXAMINATION TEST 2026
COMPLETE QUESTIONS AND SOLUTIONS
100% CORRECT



◉ Probability is the likelihood that an outcome occurs.T/F. Answer:
True


◉ The union of two events contains all outcomes that belong to either of
the two events. T/F. Answer: True


◉ Conditional probability is the probability of occurrence of one event
'A' given that another event 'B' is known to be true or has already
occurred. T/F. Answer: True


◉ A probability distribution is the characterization of the possible values
that a random variable may assume along with the probability of
assuming these values. T/F. Answer: True


◉ A random variable is a numerical description of the outcome of an
experiment. T/F. Answer: True

, ◉ The expected value of a random variable corresponds to the notion of
the median for a sample. T/F. Answer: False


◉ The normal distribution is a continuous distribution that is described
by the familiar bell-shaped curve and is perhaps the most important
distribution used in statistics. T/F. Answer: True


◉ The triangular distribution is defined by three parameters: the mean,
median, and mode. T/F. Answer: False


◉ Higher variance implies low uncertainty. T/F. Answer: False


◉ Variance calculates the probability of a random variable lying within a
certain interval. T/F. Answer: True


◉ True or False
Regression analysis is a tool for building mathematical and statistical
models that characterize relationships between a dependent (ratio)
variable and one or more independent, or explanatory variables (ratio or
categorical), all of which are numerical. T/F. Answer: True


◉ Regression models of ____ data focus on predicting the future.


a. time-series