Advertisements
Advertisements
प्रश्न
Six faces of a die are as shown below.
If the die is rolled once, find the probability of - ‘A’ appears on upper face.
उत्तर
Total number of faces = 6
Number of faces having A = 2
Therefore, required probability = `\text { Number of faces having A}/text { Total number of faces}`
`=2/6`
`=1/3`
Hence, the probability that ‘A’ appears on upper face is`=1/3`.
APPEARS IN
संबंधित प्रश्न
Gopi buys a fish from a shop for his aquarium. The shopkeeper takes out one fish at random from a tank containing 5 male fish and 8 female fish (see Figure). What is the probability that the fish taken out is a male fish?
A die is thrown twice. What is the probability that
- 5 will not come up either time?
- 5 will come up at least once?
[Hint: Throwinga die twice and throwing two dice simultaneously are treated as the same experiment].
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 die is thrown. Find the probability of getting 2 or 4
In a simultaneous throw of a pair of dice, find the probability of getting a doublet
One card is drawn from a well-shuffled deck of 52 cards. Find the probability of getting the queen of diamonds.
One card is drawn from a well shuffled deck of 52 cards. Find the probability of getting a red face card
A bag contains 8 red, 6 white and 4 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 100 identical marble stones which are numbered 1 to 100. If one stone is drawn at random from the bag, find the probability that it bears a number divisible by 4 or 5.
Two dice (each bearing numbers 1 to 6) are rolled together. Find the probability that the sum of the numbers on the upper-most faces of two dice is between 5 and 8.
A die is rolled twice. Find the probability that 5 will not come up either time.
A die is thrown 450 times and frequencies of the outcomes 1,2,3,4,5,6 were noted as given in the following table
outcomes | 1 | 2 | 3 | 4 | 5 | 6 |
Frequency | 73 | 70 | 74 | 75 | 80 | 78 |
(iii) a number > 4
A card is drawn from a pack of well - shuffled 52 playing cards . Find the probability that the card drawn is
(iii) a king
A card is drawn from a pack of well-shuffled 52 playing cards. Find the probability that the card is drawn is a face card.
A dice is thrown once. What is the probability that the number is greater than 2?
A letter of English alphabets is chosen at random. What is the probability that it is a letter of the word ‘MATHEMATICS’?
A school has five houses A, B, C, D and E. A class has 23 students, 4 from house A, 8 from house B, 5 from house C, 2 from house D and rest from house E. A single student is selected at random to be the class monitor. The probability that the selected student is not from A, B and C is ______.
A bag contains 10 red, 5 blue and 7 green balls. A ball is drawn at random. Find the probability of this ball being a not a blue ball.
At a fete, cards bearing numbers 1 to 1000, one number on one card, are put in a box. Each player selects one card at random and that card is not replaced. If the selected card has a perfect square greater than 500, the player wins a prize. What is the probability that the second player wins a prize, if the first has won?
A bag contains 5 pink, 8 blue and 7 yellow balls. One ball is drawn at random from the bag. What is the probability of getting neither a blue nor a pink ball?