Question

# If a coin is tossed thrice, then the probability of getting head twice is_________________.

Hint:

### Probability of an event = Number of favourable outcome / Total number of outcomes

## The correct answer is:

### Here, a coin is tossed thrice are : (H, H, H) , ( H, H,T) , ( H, T, H) , ( T, H, H) , ( T, T, T) , ( T, T, H) , ( T, H, T) , ( H, T, T) .

Total number of outcomes = 8

Number of favourable outcome = Number of outcomes with 2 tails = 3

Therefore, P ( getting head twice) = 3/8

Hence, the correct option is (b).

0 ≤ P(E) ≤ 1

### Related Questions to study

### Among the following that cannot be a probability is

### Among the following that cannot be a probability is

### Certain means there’s a ________ chance than an event will happen.

Probability of a sure event is 1,for an possible event it is 0 and for all other events its value lies between 0 and 1.

### Certain means there’s a ________ chance than an event will happen.

Probability of a sure event is 1,for an possible event it is 0 and for all other events its value lies between 0 and 1.

### If we toss a coin, then the probability of getting tails is_____.

Probability of a sure event is 1,for an impossible event it is 0 and for all other events its value lies between 0 and 1.

### If we toss a coin, then the probability of getting tails is_____.

Probability of a sure event is 1,for an impossible event it is 0 and for all other events its value lies between 0 and 1.

### The number of cards in a deck are____.

A deck has 4 types of cards also called suits. (1) Diamonds (2) Hearts (3) spades and (4) Clubs

### The number of cards in a deck are____.

A deck has 4 types of cards also called suits. (1) Diamonds (2) Hearts (3) spades and (4) Clubs

### If we toss a coin, then the probability of getting head is_____

0 ≤ P (E) ≤ 1 , sum of probabilities of all event is 1

### If we toss a coin, then the probability of getting head is_____

0 ≤ P (E) ≤ 1 , sum of probabilities of all event is 1

### Tossing a coin is ___ event

A random event is an event in which any outcome of all the possible one can occur.

### Tossing a coin is ___ event

A random event is an event in which any outcome of all the possible one can occur.

### Probability cannot exist in __________.

### Probability cannot exist in __________.

### The probability scale is drawn between

### The probability scale is drawn between

### If two dice are thrown, then the probability of getting the sum as a prime number is____.

0 ≤ P(E) ≤ 1 . Sum of probabilities of all events = 1

### If two dice are thrown, then the probability of getting the sum as a prime number is____.

0 ≤ P(E) ≤ 1 . Sum of probabilities of all events = 1

### The total probability is

0 ≤ P(E) ≤ 1.Sum of probabilities of all events = 1

### The total probability is

0 ≤ P(E) ≤ 1.Sum of probabilities of all events = 1

### The probability of impossible event is

An impossible event is getting a 7 on rolling a dice. Also, P(sure event) = 1

### The probability of impossible event is

An impossible event is getting a 7 on rolling a dice. Also, P(sure event) = 1

### The probability of getting an even number is _________.

0 ≤ P (E) ≤ 1 , sum of all probabilities of all events = 1

### The probability of getting an even number is _________.

0 ≤ P (E) ≤ 1 , sum of all probabilities of all events = 1