Data Science and Artificial Intelligence
2026 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE DA 2026 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 43–45 of 65. Imported answers require review unless explicitly marked reviewed.
Question 43
Open questionDAMCQ2 marksNeeds review
Consider the concept hierarchies as shown in the figure.
Which of the following options denotes the total number of possible data cubes from these concept hierarchies?
Your answerChoose one option.
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Open questionDAMCQ2 marksNeeds review
Let
and
be two independent random variables.
follows Bernoulli
distribution and
follows Normal
distribution.Which of the following options is the variance of
?Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 45
Open questionDAMCQ2 marksNeeds review
Let
Which of the following is the value of
?Your answerChoose one option.
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