English

Two Coins Are Tossed Together. Find the Probability of Getting: No Head - Mathematics

Advertisements
Advertisements

Question

Two coins are tossed together. Find the probability of getting: no head

Sum

Solution

Total outcomes = 4
i.e., HH, HT, TT, TH

Favourable outcomes = 1

i.e., TT

P(E) = `1/4`

shaalaa.com
  Is there an error in this question or solution?
Chapter 23: Probability - Exercise 23 [Page 259]

APPEARS IN

Selina Concise Mathematics [English] Class 8 ICSE
Chapter 23 Probability
Exercise 23 | Q 18.3 | Page 259

RELATED QUESTIONS

The probability that a number selected at random from the numbers 1, 2, 3, ..., 15 is a multiple of 4, is

`(A)4/15`

`(B)2/15`

`(C)1/5`

`(D)1/3`


In the given figure, a square dart board is shown. The length of a side of the larger square is 1.5 times the length of a side of the smaller square. If a dart is thrown and lands on the larger square. What is the probability that it will land in the interior of the smaller square?


A bag contains cards numbered from 1 to 49. A card is drawn from the bag at random, after mixing the cards thoroughly. Find the probability that the number on the drawn card is multiple of 5.


In fig. 7 is shown a disc on which a player spins an arrow twice. The fraction `a/b` is formed, where 'a' is the number of sector on which arrow stops on the first spin and 'b' is the number of the sector in which the arrow stops on second spin. On each spin, each sector has equal chance of selection by the arrow. Find the probability that the fraction  `a/b>1.`


Choose the correct alternative answer for the following question.

A die is rolled. What is the probability that the number appearing on upper face is less than 3 ?


Choose the correct alternative answer for the following question.

There are 40 cards in a bag. Each bears a number from 1 to 40. One card is drawn at random. What is the probability that the card bears a number which is a multiple of 5 ?


A bag contains 4 white balls, 5 red balls, 2 black balls and 4 green balls. A ball is drawn at random from the bag. Find the probability that it is black.


A box contains 25 cards numbered from 1 to 25. A card is drawn at random from the bag. Find the probability that the number on the drawn card is divisible by 2 or 3.


Cards numbered 1 to 30 are put in a bag. A card is drawn at random from the bag. Find the probability that the number on the drawn card is not a perfect square number.


In a hockey team there are 6 defenders, 4 offenders and 1 goalee. Out of these, one player is to be selected randomly as a captain. Find the probability of the selection that – A defender will be selected.


A die is thrown once. Find the probability of getting a number which (i) is a prime number (ii) lies between 2 and 6.


A bag contains 15 balls, out of which some are white and the others are black. If the probability of drawing a black ball at random from the bag is `2/3`, then find how many white balls are there in the bag.


A die is thrown once. Find the probability of getting a composite number


A bag contains 3 white, 5 black, and 2 red balls, all of the same shape and size. A ball is drawn from the bag without looking into it, find the probability that the ball drawn is not a red ball.


A bag contains 3 white, 5 black, and 2 red balls, all of the same shape and size. A ball is drawn from the bag without looking into it, find the probability that the ball drawn is not a black ball.


Three identical coins are tossed together. What is the probability of obtaining:
exactly two heads?


An event is very unlikely to happen. Its probability is closest to ______.


A dice is rolled once. What is the probability that the number on top will be odd


A dice is rolled once. What is the probability that the number on top will be a factor of 36


Ritwik draws a ball from a bag that contains white and yellow balls. The probability of choosing a white ball is `2/9`. If the total number of balls in the bag is 36, find the number of yellow balls.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×