BUAL 2600 GUPTA FINAL EXAM |
CERTIFIED EXAM QUESTIONS WITH
ANSWERS 2026
discrete probability distribution - correct-answer -a ________ ________ ________
is expressed as a table, graph, or formula that gives the probability associated
with each possible value that the random variable can assume
binomial distribution - correct-answer -the requirement that the probability of
success remains constant from trial to trial is a property of what type of
distribution?
greater - correct-answer -the area under the normal curve z=0 and z=1 is
________ than the area under the normal curve between z=1 and z=2
uniform, normal, and exponential - correct-answer -what are 3 continuous
probability distributions?
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0 - correct-answer -if [a,b] denotes an arbitrary interval of numbers on the real
number line, find the probability when P(x=a)
means - correct-answer -the central limit theorem states that as the sample size
increases, the distribution of the sample ________ approaches the normal
distribution
increases, decreases - correct-answer -as the sample size ________, the variation
of the sampling distribution of the mean ________
np is greater than or equal to 5 and n(1-p) is greater than or equal to 5 - correct-
answer -the population of all sample proportions has a normal distribution if the
sample size (n) is sufficiently large. the rule of thumb for ensuring that n is
sufficiently large is...
increases, normal - correct-answer -for non-normal populations, as the sample
size (n) ________, the distribution of sample means approaches a ________
distribution
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convenience sampling - correct-answer -a restaurant leaves comment cards on all
of its tables and encourages customers to participate in a brief survey to learn
about their overall experience. this is an example of what type of sampling?
convenience sampling - correct-answer -a quality control worker at a factory
selects the first 10 items she sees as her sample for the day. this is an example of
what kind of sampling?
finite population (you count how many) - correct-answer -a population that
consists of all the customers that will use the drive-thru of the local fast food
restaurant is what type of population?
convenience sampling - correct-answer -what kind of sampling consists of
selecting elements because they are easy to sample?
graphical description analytics - correct-answer -what type of analytics uses
traditional or newer graphs to present visual summaries of business information?
linear regression, decision trees, and neural networks - correct-answer -what are
3 supervised learning techniques in predictive analytics?