Advertisements
Advertisements
प्रश्न
There are six cards in a box, each bearing a number from 0 to 5. Find the probability of the following event, that a card drawn show, a natural number.
उत्तर
Total number of cards = 6
Number of cards bearing a natural number = 1, 2, 3, 4, 5
= 5
Therefore, required probability =` \text { Number of cards bearing a natural number}/\text { Total number of cards}`
`=5/6`
Hence, the probability that a card drawn shows a natural number is `=5/6`.
APPEARS IN
संबंधित प्रश्न
The probability of an event that cannot happen is _________. Such as event is called _________.
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.
A card is drawn at random from a pack of 52 cards. Find the probability that card drawn is other than an ace
In a class, there are 18 girls and 16 boys. The class teacher wants to choose one pupil for class monitor. What she does, she writes the name of each pupil on a card and puts them into a basket and mixes thoroughly. A child is asked to pick one card from the basket. What is the probability that the name written on the card is the name of a boy?
Why is tossing a coin considered to be a fair way of deciding which team should choose ends in a game of cricket?
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 neither white nor black.
A bag contains 6 red balls and some blue balls. If the probability of drawing a blue ball the bag is twice that of a red ball, find the number of blue balls in the bag.
A box contains loo red cards, 200 yellow cards and 50 blue cards. If a card is drawn at random from the box, then find the probability that it will be a blue card
A box contains loo red cards, 200 yellow cards and 50 blue cards. If a card is drawn at random from the box, then find the probability that it will be not a yellow card
A game consists of spinning an arrow which comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12; as shown below.
If the outcomes are equally likely, find the probability that the pointer will point at:
- 6
- an even number.
- a prime number.
- a number greater than 8.
- a number less than or equal to 9.
- a number between 3 and 11.
From a deck of 52 cards, all the face cards are removed and then the remaining cards are shuffled. Now one card is drawn from the remaining deck. Find the probability that the card drawn is a king of black color.
Seven cards:- the eight, the nine, the ten, jack, queen, king and ace of diamonds are well shuffled. One card is then picked up at random.
If the king is drawn and put aside, what is the probability that the second card picked up is:
- an ace?
- a king?
In a game of chance, a spinning arrow comes to rest at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8. All these are equally likely outcomes. Find the probability that it will rest at an odd number.
A bag contains 3 red, 3 white and 3 green balls. One ball is taken out of the bag at random. What is the probability that the ball drawn is –not red.
Cards marked with numbers 1, 3, 5, ..., 101 are placed in a bag and mixed thoroughly. A card is drawn at random from the bag. Find the probability that the number on the drawn card is less than 19.
In a cricket match a batsman hits a boundary 6 times out of 30 balls he plays. Find the probability that he did not hit the boundary?
Two dice are thrown simultaneously. What is the probability that the sum of the numbers appearing on the dice is 7?
Two dice are thrown simultaneously. What is the probability that the sum of the numbers appearing on the dice is a prime number?
In a game, the entry fee is Rs 5. The game consists of a tossing a coin 3 times. If one or two heads show, Sweta gets her entry fee back. If she throws 3 heads, she receives double the entry fees. Otherwise she will lose. For tossing a coin three times, find the probability that she just gets her entry fee.
Two dice are thrown at the same time. What is the probability that the sum of the two numbers appearing on the top of the dice is 8?
