MSIS 3223 - Exam 2 (Chapters 5-9) Questions and Answers (Graded A)
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Course
MSIS 3223
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MSIS 3223
MSIS 3223 - Exam 2 (Chapters 5-9) Questions and Answers (Graded A)MSIS 3223 - Exam 2 (Chapters 5-9) Questions and Answers (Graded A)MSIS 3223 - Exam 2 (Chapters 5-9) Questions and Answers (Graded A)T/F: Probability is the likelihood that an outcome occurs. - ANSWER-True.
T/F: The union of two ev...
MSIS 3223 - Exam 2 (Chapters 5-9)
Questions and Answers (Graded A)
T/F: Probability is the likelihood that an outcome occurs. - ANSWER-True.
T/F: The union of two events contains all outcomes that belong to either the two events.
- ANSWER-True.
T/F: 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. - ANSWER-True.
T/F: A probability distribution is the characterization of the possible values that a
random variable may assume along with the probability of assuming these values. -
ANSWER-True.
T/F: A random variable is a numerical description of the outcome of an experiment. -
ANSWER-True.
T/F: The expected value of a random variable corresponds to the notion of the median
for a sample. - ANSWER-False.
T/F: 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. -
ANSWER-True.
T/F: The triangular distribution is defined by the three parameters: the mean, median,
and mode. - ANSWER-False.
T/F: In Normal Distributions, Mean = Median = Mode - ANSWER-True.
T/F: Excel's Trendline feature cannot be used in modeling trends which include time
variables. - ANSWER-False.
T/F: The standard error may be assumed to be large if the data are clustered close to
the regression line. - ANSWER-False.
T/F: A good regression model has the fewest number of explanatory variables providing
an adequate interpretation of the dependent variable. - ANSWER-True.
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