If P(A) denotes the probability of getting an event A. Then P(not getting A) is :

1. 1 - P(A)

2. P(A) - 1

3. P(A)

4. 1 + P(A)

A coin is tossed once. The probability of getting a tail is :

1. 1

2. 2

3. $\dfrac{1}{2}$

4. none of these

A coin is tossed two times. The probability of getting atleast one tail is :

1. $\dfrac{3}{4}$

2. $\dfrac{4}{3}$

3. $\dfrac{1}{2}$

4. $\dfrac{5}{6}$

A card is drawn from a well shuffled pack of 52 playing cards. The probability of getting a face card is :

1. $\dfrac{4}{13}$

2. $\dfrac{2}{13}$

3. $\dfrac{3}{13}$

4. $\dfrac{1}{13}$