CSE Exam 2025/2026 With 100%
Correct Answers
Case-based reasoning can be applied to legal cases but not to
medical cases. T/F CORRECT ANSWERS False
Initialization of K-Means may affect the clustering results. T/F
CORRECT ANSWERS True
Good data journalism employs methods from this course to
engage and involve readers to discover knowledge in data. T/F
CORRECT ANSWERS True
Predicting stock price based on historical data is an example of
time-series analysis. T/F CORRECT ANSWERS True
The Jaccard distance measure treats the two objects as sets of
characteristics. T/F CORRECT ANSWERS True
Sensors produce clean time series data (i.e., with equally spaced
time intervals) making them useful for time series analysis. T/F
CORRECT ANSWERS False -- Sensor readings often are not
,equally spaced, can have missing data. We need to process that
data to create a time series.
The Pythagorean theorem tells us that the distance between A
and B is given by the length of the shortest side of a triangle,
and is equal to the square root of the summed squares of the
lengths of the other two longer sides of the triangle. T/F
CORRECT ANSWERS False
Correlation implies that there must be some cause and effect
relationship between the two variables. T/F CORRECT
ANSWERS False
How many neighbors should be used in k-nn?
a. no simple answer
b. 10
c. 3
d. 5 CORRECT ANSWERS a; no simple answer
What is the (minimum) Levenshtein metric between:
Godly
Goodbye CORRECT ANSWERS 4
, Positive instances classified as negative are called: CORRECT
ANSWERS False negatives
A ranking classifier plus a threshold produces a single confusion
matrix. T/F CORRECT ANSWERS True
When comparing classification model performance, the model
with the highest ______________________ should be used.
a. precision
b. f-measure
c. accuracy
d. depends on the situation
e. recall CORRECT ANSWERS d. depends on the situation
F-measure combines precision and recall ... CORRECT
ANSWERS giving equal weight to precision and recall.
A ROC graph has false negative rate on the x-axis and true
positive rate on the y-axis T/F CORRECT ANSWERS False
TN/(TN+FP) = True negative rate = 1-False positive rate =
________________ CORRECT ANSWERS Specificity
Correct Answers
Case-based reasoning can be applied to legal cases but not to
medical cases. T/F CORRECT ANSWERS False
Initialization of K-Means may affect the clustering results. T/F
CORRECT ANSWERS True
Good data journalism employs methods from this course to
engage and involve readers to discover knowledge in data. T/F
CORRECT ANSWERS True
Predicting stock price based on historical data is an example of
time-series analysis. T/F CORRECT ANSWERS True
The Jaccard distance measure treats the two objects as sets of
characteristics. T/F CORRECT ANSWERS True
Sensors produce clean time series data (i.e., with equally spaced
time intervals) making them useful for time series analysis. T/F
CORRECT ANSWERS False -- Sensor readings often are not
,equally spaced, can have missing data. We need to process that
data to create a time series.
The Pythagorean theorem tells us that the distance between A
and B is given by the length of the shortest side of a triangle,
and is equal to the square root of the summed squares of the
lengths of the other two longer sides of the triangle. T/F
CORRECT ANSWERS False
Correlation implies that there must be some cause and effect
relationship between the two variables. T/F CORRECT
ANSWERS False
How many neighbors should be used in k-nn?
a. no simple answer
b. 10
c. 3
d. 5 CORRECT ANSWERS a; no simple answer
What is the (minimum) Levenshtein metric between:
Godly
Goodbye CORRECT ANSWERS 4
, Positive instances classified as negative are called: CORRECT
ANSWERS False negatives
A ranking classifier plus a threshold produces a single confusion
matrix. T/F CORRECT ANSWERS True
When comparing classification model performance, the model
with the highest ______________________ should be used.
a. precision
b. f-measure
c. accuracy
d. depends on the situation
e. recall CORRECT ANSWERS d. depends on the situation
F-measure combines precision and recall ... CORRECT
ANSWERS giving equal weight to precision and recall.
A ROC graph has false negative rate on the x-axis and true
positive rate on the y-axis T/F CORRECT ANSWERS False
TN/(TN+FP) = True negative rate = 1-False positive rate =
________________ CORRECT ANSWERS Specificity
