Impossible and Certain Events

Q.

The probability of an event always lies between ______.

1. $0$ and $1$
2. $0$ and $2$
3. $-1$ and $1$
4. None of the above

Q. A die is rolled once. Then the probability of getting a 7 is

1. $\frac{1}{2}$
2. $\frac{1}{3}$
3. $0$
4. $\frac{1}{4}$

Q.

The probability of getting both, heads and tails in one throw of a coin is ____.

1. 1/2
2. 1/3
3. 1
4. 0

Q. Which of the following statements are true for the value of probability of an event ?

1. An impossible event has a probability equal to '0'
2. A sure or certain event has a probability equal to '1'
3. Events that are equally likely to occur have a probability equal to '0.50'
4. Events that are likely to occur have a probability greater than '0.50'

Q.

Getting a number less than 7 while rolling a dice is not a sure event.

1. True

2. False

Q.

$20$ cards numbered $1,2,3,...,20$ are put in a box and mixed thoroughly. Shashi draws a card from the box. Find the probability that the number on the card is even.

Q.

The event of getting a word without any vowels (a, e, i, o, u) in a group of words is sure event.

1. True

2. False

Q.

The probability of a sure event is:

1. 0

2. not defined

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

4. 1

Q.

The range of probability is

1. -1 to 1 (inclusive)

2. 0 to 1 (inclusive)

3. 1 to 2 (inclusive)

4. -1 to 0 (inclusive)

Q.

A bag contains blue balls and black balls. The probability of choosing a black ball at random is 1

1. False

2. True

Q.

The probability to see the moon in the new moon day is ____.

1. 0

2. 1

3. 0.5

4. 0.25

Q. Which of the following events are certain events with respect to rolling a dice once ?

1. The number is a multiple of '1'.
2. The number is either even or odd.
3. The number is not greater than 6.
4. The number is greater than or equal to '1'.

Q. In a single throw of a die, the probability of getting a number greater than or equal to 1 is __.

1. 
   1
2. 
   0
3. 
   0.75
4. 
   0.50

Q.

The probability of an event will be greater than 0 and less than 1.

1. False

2. True

Q.

The probability of getting both, heads and tails in one throw of a coin is ____.

1. 1/2
2. 1/3
3. 0
4. 1