71. You are given
four images represented as

The value of entropy is maximum for image

(A) I

_{1}(B) I_{2}
(C) I

_{3}(D) I_{4}
Answer: C

__Explanation:__
Entropy of image represent the randomness pixels.

In I1 all pixel are same. Entropy is zero. In I3 two
are same therefore, entropy is maximum whereas in I2 and I4 three3 are same.

72. A
cryptarithmetic problem of the type

SEND

__+ MORE__

__MONEY__

Can be solved efficiently using

(A) depth first technique

(B) breadth first technique

(C) constraint satisfaction technique

(D) bidirectional technique

Answer: C

73. Match the
following :

**List - I**

a. Supervised learning

b. Unsupervised learning

c. Reinforcement learning

d. Inductive learning

**List - II**

1. The decision system receives rewards for its action
at the end of a sequence of steps.

2. Manual labels of inputs are not used.

3. Manual labels of inputs are used.

4. System learns by example

**Codes :**

a b c d

(A) 1 2 3 4

(B) 2 3 1 4

(C) 3 2 4 1

(D) 3 2 1 4

Answer: D

74. A* algorithm
is guaranteed to find an optimal solution if

(A) h' is always 0.

(B) g is always 1.

(C) h' never overestimates h.

(D) h' never underestimates h.

Answer: C

75. Let Î¸(x, y, z)
be the statement “x+y=z” and let there be two quantifications given as

(i) ∀x ∀y ∃Z Î¸(x, y, z)

(ii) ∃Z ∀x ∀y Î¸(x, y, z)

Where x, y, z are real numbers. Then which one of the
following is correct?

(A) (i) is true and (ii) is true.

(B) (i) is true and (ii) is false.

(C) (i) is false and (ii) is true.

(D) (i) is false and (ii) is false.

Answer: B