Advertisements
Advertisements
प्रश्न
A game of chance consists of spinning an arrow which is equally likely to come to rest pointing to one of the numbers 1, 2, 3,..., 12 as shown in the figure. What is the probability that it will point to 6 ?
उत्तर
The possible outcomes are 1,2, 3,4, 5................12.
Number of all possible outcomes = 12
Let E1 be the event that the pointer rests on 6.
Then, number of favourable outcomes = 1
∴ P (arrow pointing at 6) = P( E1) = `1/12`
APPEARS IN
संबंधित प्रश्न
Two different dice are tossed together. Find the probability :
1) of getting a doublet
2) of getting a sum 10, of the numbers on the two dice.
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 box contains 20 cards numbered from 1 to 20. A card is drawn at random from the box. Find the probability that the number on the drawn card is a prime number
A black die and a white die are thrown at the same time. Write all the possible outcomes. What is the probability? that the product of numbers appearing on the top of the dice is less than 9.
A black die and a white die are thrown at the same time. Write all the possible outcomes. What is the probability?
that the numbers obtained have a product less then 16.
Cards numbered from 11 to 60 are kept in a box. If a card is drawn at random from the box, find the probability that the number on the drawn card is a perfect square number
A die is thrown once. What is the probability of getting a prime number?
Two coins are tossed simultaneously. What is the probability of getting at least one head?
A piggy bank contains hundred 50 p coins, seventy ₹1 coin, fifty ₹2 coins and thirty ₹5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, what is the probability that the coin will be a ₹1 coin?
Five cards − the ten, jack, queen, king and ace of diamonds are well shuffled with their faces downwards. One card is then picked up at random. What is the probability that the drawn card is the queeen?
What is the probability that an ordinary year has 53 Mondays?
All kings, queens and aces are removed from a pack of 52 cards. The remaining cards are well-shuffled and then a card is drawn from it. Find the probability that the drawn card is a black face card.
A card is drawn at random from a pack of 52 playing cards. Find the probability of drawing a card that is neither a spade nor a king.
A coin is tossed. What is the probability of getting:
a tail?
Three identical coins are tossed together. What is the probability of obtaining:
exactly two heads?
A die is thrown once. Find the probability of getting:
a number greater than 6.
What is the probability of throwing an even number with a single standard dice of six faces?
There are 24 balls in a pot. If 3 of them are Red, 5 of them are Blue and the remaining are Green then, what is the probability of picking out a Blue ball?
A letter of English alphabets is chosen at random. Determine the probability that the letter is a consonant.
A dice is rolled once. What is the probability that the number on top will be less than 1
