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प्रश्न
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 |
(i) 4
उत्तर
Total number of times die is thrown = 450
Number of times 4 come up on the die = 75
P(4 will come up on die) = `"Number of time 4 come up"/"Total number of times the die is thrown"`
= `75/450 = 1/6`
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संबंधित प्रश्न
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].
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Two dice are thrown simultaneously. What is the probability that 5 wifi come up at both dice?
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 black card.
How many possibilities is following?
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Tickets numbered 2, 3, 4, 5, ..., 100, 101 are placed in a box and mixed thoroughly. One ticket is drawn at random from the box. Find the probability that the number on the ticket is a number less than 16.
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 greater than 7
Complete the following table.
| Sr. No. | Random experiment | Sample space | Number of sample points in S |
| 1. | One coin is tossed. | S = {H, T} | n(S) = `square` |
| 2. | Two coins are tossed. | S = `square` | n(S) = `square` |
| 3. | Three coins are tossed. | S = {`square`, THH, HTT, THT, TTH, TTT} | n (S) = 8 |
| 4. | A die is thrown. | S = `square` | n(S) = `square` |
