1.  Both (A) and (R) are true and (R) is the correct reason for (A)

2.  Both (A) and (R) are true but (R) is not the correct reason for (A)

3.  (A) is true, (R) is false

4.  (A) is false, (R) is  true

4

Both (A) and (R) are true and (R) is the correct reason for (A)<br>

Explanation :
No Explanation available for this question

# Four numbers are chosen at random from {1, 2, 3, .... 40}. The probability that they are not consecutive, is

1.  1/2470

2.  4/7969

3.  2469/2470

4.  7965/7969

4

2469/2470

Explanation :
No Explanation available for this question

# If A and B are mutually exclusive events with  P(B)≠1, then P(A/B-)is equal to (Here B- is the complement of the event B)

1.  1/P(B)

2.  1/(1-P(B))

3.  P(A) / P(B)

4.  P(A) / (1-P(B))

4

P(A) / (1-P(B))

Explanation :
No Explanation available for this question

# A bag contains 6 white and 4 black balls. Two balls are drawn at random. The probability that they are of the same colour, is

1.  1/15

2.  2/5

3.  4/15

4.  7/15

4

7/15

Explanation :
No Explanation available for this question

# The mean and standard deviation of a binomial variate X are 4 and √3 respectively. Then P(X > 1) is equal to

1.  1 - (1/4)16

2.  1 - (3/4)16

3.  1 - (2/3)16

4.  1 - (1/3)16

4

1 - (3/4)<sup>16</sup>

Explanation :
No Explanation available for this question

# The probability distribution of a random variable X is given by-----------------------------------------X = x         0   &n

1.  1.76

2.  2.45

3.  3.2

4.  4.8

4

1.76

Explanation :
No Explanation available for this question

# In order to eliminate the first degree terms from the equation 2x2 + 4xy + 5y2 - 4x - 22y + 7 = 0, the pointto which origin is to be shifted, is

1.  (1,-3)

2.  (2,3)

3.  (-2,3)

4.  (1,3)

4

(-2,3)

Explanation :
No Explanation available for this question

# The angle between the line joining the points (1, - 2), (3, 2) and the line x + 2y - 7 = 0 is

1.  π

2.  π/2

3.  π/3

4.  π/6

4

&#960;/2

Explanation :
No Explanation available for this question

# If A(2, -l)and B(6, 5) are two points the ratio in which the foot of the perpendicular from (4, 1 ) to AB divides it, is

1.  8:15

2.  5:8

3.  -5:8

4.  -8:5

4

5:8

Explanation :
No Explanation available for this question

1.  20

2.  13

3.  1/5

4.  5

4