BADM 211 CERTIFICATION EVALUATION
TEST 2026 FULL SOLUTION QUESTIONS
GRADED A+
●● Machine learning refers to algorithms that __________________.
Answer: learn directly from data
●● The conditional probability that event A will occur given that event B
has already occurred may be written as __________________.
Answer: P(A ꓲ B)
●● Which of the following is NOT an example of classification?
Answer: Prediction of someone's income
●● Which of the following is an example of prediction?
Answer: Forecasting sales
●● Oversampling rare events is a method used to address
_____________ situations.
Answer: Class imbalance
, ●● If a categorical variable is ordinal, it may be coded as
____________.
Answer: integer values
●● Normalizing data is usually accomplished through one of two ways:
1) compute the Z-score of the variable,
and
2) ______________.
Answer: Rescale the variable to a uniform range
●● The three most effective basic plots are _________________.
Answer: bar charts, line graphs, scatter plots
●● Dummy coding categorical variables can greatly ___________ of the
dataset.
Answer: inflate the dimension
●● In k-fold cross-validation, the model will be fit _________ times
before computing an average error measure.
Answer: 5
●● 12) Victoria from Operations has asked you to build a machine
learning model to predict the mean-time-before-failure for an industrial
TEST 2026 FULL SOLUTION QUESTIONS
GRADED A+
●● Machine learning refers to algorithms that __________________.
Answer: learn directly from data
●● The conditional probability that event A will occur given that event B
has already occurred may be written as __________________.
Answer: P(A ꓲ B)
●● Which of the following is NOT an example of classification?
Answer: Prediction of someone's income
●● Which of the following is an example of prediction?
Answer: Forecasting sales
●● Oversampling rare events is a method used to address
_____________ situations.
Answer: Class imbalance
, ●● If a categorical variable is ordinal, it may be coded as
____________.
Answer: integer values
●● Normalizing data is usually accomplished through one of two ways:
1) compute the Z-score of the variable,
and
2) ______________.
Answer: Rescale the variable to a uniform range
●● The three most effective basic plots are _________________.
Answer: bar charts, line graphs, scatter plots
●● Dummy coding categorical variables can greatly ___________ of the
dataset.
Answer: inflate the dimension
●● In k-fold cross-validation, the model will be fit _________ times
before computing an average error measure.
Answer: 5
●● 12) Victoria from Operations has asked you to build a machine
learning model to predict the mean-time-before-failure for an industrial
