Data Science and Artificial Intelligence
GATE DA format:mcq PYQs
Build your understanding with focused practice from past exam papers.
Questions 91–100 of 105. Imported answers require independent review unless marked reviewed.
Question 23
Open questionDAMCQ1 markNeeds review
Let
and
be two admissible heuristics used in
search.Which ONE of the following expressions is always an admissible heuristic?
Your answerChoose one option.
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Open questionDAMCQ1 markNeeds review
Consider five random variables
,
,
,
, and
whose joint distribution satisfies:
Which ONE of the following statements is FALSE?
Your answerChoose one option.
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Open questionDAMCQ1 markNeeds review
Consider the following statement:
In adversarial search,
pruning can be applied to game trees of any depth where
is the _____ (m) value choice we have formed so far at any choice point along the path for the MAX player and
is the _____ (n) value choice we have formed so far at any choice point along the path for the MIN player.Which ONE of the following choices of (m) and (n) makes the above statement valid?
Your answerChoose one option.
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Open questionDAMCQ1 markNeeds review
Consider a database that includes the following relations:
Defender(name, rating, side, goals)
Forward(name, rating, assists, goals)
Team(name, club, price)
Which ONE of the following relational algebra expressions checks that every name occurring in Team appears in either Defender or Forward, where
denotes the empty set?Your answerChoose one option.
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Open questionDAMCQ1 markNeeds review
Let the minimum, maximum, mean and standard deviation values for the attribute income of data scientists be ₹4600, ₹17000, ₹9600, and ₹2100, respectively. The z-score normalized income value of ₹10600 is closest to which ONE of the following options?
Your answerChoose one option.
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Open questionDAMCQ2 marksNeeds review
A fair six-sided die (with faces numbered 1, 2, 3, 4, 5, 6) is repeatedly thrown independently.
What is the expected number of times the die is thrown until two consecutive throws of even numbers are seen?
Your answerChoose one option.
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Open questionDAMCQ2 marksNeeds review
Let
be a function. Note:
denotes the set of real numbers.
Which ONE of the following choices gives the values of
that make the function
continuous and differentiable?Your answerChoose one option.
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Open questionDAMCQ2 marksNeeds review
Consider the following Python code:
def count(child_dict, i):
if i not in child_dict.keys():
return 1
ans = 1
for j in child_dict[i]:
ans += count(child_dict, j)
return ans
child_dict = dict()
child_dict[0] = [1,2]
child_dict[1] = [3,4,5]
child_dict[2] = [6,7,8]
print(count(child_dict,0))
Which ONE of the following is the output of this code?
Your answerChoose one option.
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Open questionDAMCQ2 marksNeeds review
Consider the function
whose pseudocode is given below:computes(X)
S[1] ← 1
for i ← 2 to length(X)
S[i] ← 1
if X[i − 1] ≤ X[i]
S[i] ← S[i] + S[i − 1]
end if
end for
return S
Which ONE of the following values is returned by the function
for
?Your answerChoose one option.
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Open questionDAMCQ2 marksNeeds review
Let
denote the maximum number of comparisons made while searching for an entry in a sorted array of size
using binary search.Which ONE of the following options is TRUE?
Your answerChoose one option.
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