Advertisements
Advertisements
प्रश्न
A coin is tossed two times. Find the probability of getting at most one head.
उत्तर
The possible outcomes, if a coin is tossed 2 times is
S = {(HH), (TT), (HT), (TH)}
∴ n(S) = 4
Let E = Event of getting at most one head
= {(TT), (HT), (TH)}
∴ n(S) = 3
Hence, required probability = `(n(E))/(n(S)) = 3/4`
APPEARS IN
संबंधित प्रश्न
One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting a spade.
Which of the following arguments are correct and which are not correct? Give a reason for your answer.
If a die is thrown, there are two possible outcomes, an odd number or an even number. Therefore, the probability of getting an odd number is 1/2.
One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting the jack of hearts.
A bag contains 3 red balls, 5 black balls and 4 white balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is Not red
A bag contains 5 red, 8 white and 7 black balls. A ball is drawn at random from the bag. Find the probability that the drawn ball is red or white
The king, queen and jack of clubs are removed from a deck of 52 playing cards and the remaining cards are shuffled. A card is drawn from the remaining cards. Find the
probability of getting a card of heart
1000 families with 2 children were selected randomly , and the following data were recorded :
| Number of girls in a family | 0 | 1 | 2 |
| Number of families | 333 | 392 | 275 |
Find the probability of a family , having
(ii) 2 girls
If I toss a coin 3 times and get head each time, should I expect a tail to have a higher chance in the 4th toss? Give reason in support of your answer.
All the jacks, queens and kings are removed from a deck of 52 playing cards. The remaining cards are well shuffled and then one card is drawn at random. Giving ace a value 1 similar value for other cards, find the probability that the card has a value 7
Cards with numbers 2 to 101 are placed in a box. A card is selected at random. Find the probability that the card has a square number
