मराठी

Three coins are tossed simultaneously. What is the probability of getting at most one tail? - Mathematics

Advertisements
Advertisements

प्रश्न

Three coins are tossed simultaneously. What is the probability of getting at most one tail?

बेरीज

उत्तर

For three coins, the total possible outcomes are 23 = 8 because each coin has 2 possible outcomes (Head or Tail).

The outcomes where exactly two tails occur are:

  1. TTH
  2. THT
  3. HTT

There are 3 outcomes with exactly two tails out of 8 total outcomes.

P (Exactly two tails)= `3/8`

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2023-2024 (February) Standard Official

संबंधित प्रश्‍न

Two different dice are tossed together. Find the probability that the product of the two numbers on the top of the dice is 6.


All the black face cards are removed from a pack of 52 playing cards. The remaining cards are well shuffled and then a card is drawn at random. Find the probability of getting a:
(i) face card
(ii) red card
(iii) black card
(iv) king


A bag 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:

(i) divisible by 3 or 5

(ii) a perfect square number


Two coins are tossed simultaneously. Write the sample space (S), n(S), the following event A
using set notation and n(A), where ‘A is the event of getting at least one head.’


Two different dice are rolled simultaneously. Find the probability that the sum of numbers appearing on the two dice is 10 ?


Five cards − the ten, jack, queen, king and ace of diamonds, are well-shuffled with their face downwards. One card is then picked up at random.

If the queen is drawn and put a side, what is the probability that the second card picked up is (a) an ace? (b) a queen?


A dice is rolled twice. Find the probability that  5 will not come up either time


In a bag there are 44 identical cards with figure of circle or square on them. There are 24 circles, of which 9 are blue and rest are green and 20 squares of which 11 are blue and rest are green.  One card is drawn from the bag at random. Find the probability that it has the figure of green  


A bag contains 3 red and 5 black balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is not red. 


A number is chosen at random from the number –3, –2, –1, 0, 1, 2, 3. What will be the probability that square of this number is less then or equal to 1?


Two numbers 'a' and 'b' are selected successively without replacement in that order from the integers 1 to 10. The probability that\[\frac{a}{b}\] is an integer, is


The probability of selecting a red ball at random from the jar that contains only red, blue and orange balls is `1/4`. The probability of selecting a blue ball at random from the same jar is `1/3`. If the jar contains 10 orange balls, find the total number of balls in the jar.


A bag contains 18 balls out of which x balls are red. If the ball is drawn at random from the bag, what is the probability that it is not red?


A jar contains 24 marbles. Some of these are green and others are blue. If a marble is drawn at random from the jar, the probability that it is green is `2/3`. Find the number of blue marbles in the jar.


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 balloon vendor has 2 red, 3 blue and 4 green balloons. He wants to choose one of them at random to give it to Pranali. What is the probability of the event that Pranali gets,a green balloon.


If two coins are tossed, then find the probability of the event: No heads turns up.


in winter, the temperatures at a hill station from Monday to Friday are in A.P. The sum of the temperatures of Monday, Tuesday and Wednesday is 0° C and the sum of the temperatures of  Thursday and Friday is 15° C. Find the temperature of each of the five days.  


A die is thrown, find the probability of getting:

a number greater than 4


A dice is rolled once. What is the probability that the number on top will be greater than 5


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×