Advertisements
Advertisements
प्रश्न
Two coins are tossed together . what is the probabilty of getting different faces on the coins ?
उत्तर
The sample space for the experiment of tossing two coins is {HH , HT , TH , TT}
Number of outcomes = 4
Number of favourable outcomes = 2
P(getting different faces on the coins) = `"Number of favourable outcomes"/"Total number of outcomes"` = `2/4 = 1/2`
APPEARS IN
संबंधित प्रश्न
Two dice are thrown. Find the probability of the event that the product of numbers on their upper faces is 12.
A box contains cards numbered 3, 5, 7, 9, ..., 35, 37. A card is drawn at random form the box. Find the probability that the number on the drawn card is a prime number.
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 number is selected from numbers 1 to 25. The probability that it is prime is
If P(E) = 0.05, then P(not E) =
A card is drawn at random from a well-shuffled pack of 52 cards. Find the probability of getting a red king,
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 red card.
A man is known to speak the truth 3 out of 4 times. He throws a die and a number other than six comes up. Find the probability that he reports it is a six.
One or more outcomes of an experiment make an event.
A bag contains 25 cards, numbered through 1 to 25. A card is drawn at random. What is the probability that the number on the card drawn is a prime number?