Questions 91–100 of 105. Imported answers require independent review unless marked reviewed.

Topic practice 105 questionsPage 10 of 11

Question 23

Open question
DAMCQ1 markNeeds review
Let

and

be two admissible heuristics used in

search.
Which ONE of the following expressions is always an admissible heuristic?
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Question 24

Open question
DAMCQ1 markNeeds review
Consider five random variables

,

,

,

, and

whose joint distribution satisfies:

Which ONE of the following statements is FALSE?
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Question 25

Open question
DAMCQ1 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?
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Question 26

Open question
DAMCQ1 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?
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Question 27

Open question
DAMCQ1 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?
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Question 36

Open question
DAMCQ2 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?
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Question 37

Open question
DAMCQ2 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?
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Question 38

Open question
DAMCQ2 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?
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Question 39

Open question
DAMCQ2 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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Question 40

Open question
DAMCQ2 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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