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प्रश्न
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` |
उत्तर
| Sr. No. | Random experiment | Sample space | Number of sample points in S |
| 1. | One coin is tossed. | S = {H, T} | n(S) = 2 |
| 2. | Two coins are tossed. | S = {HH, HT, TH, TT} | n(S) = 4 |
| 3. | Three coins are tossed. | S = {HHH, HHT, HTH THH, HTT, THT, TTH, TTT} | n (S) = 8 |
| 4. | A die is thrown. | S = 1, 2, 3, 4, 5, 6 | n(S) = 6 |
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संबंधित प्रश्न
Why is tossing a coin considered to be a fair way of deciding which team should get the ball at the beginning of a football game?
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Following experiment have equally likely outcomes? Explain.
A baby is born. It is a boy or a girl.
The table given below shows the months of birth of 36 students of a class:
| Month of birth |
Jan. | Feb. | Mar. | Apr. | May | June | July | Aug. | Sept. | Oct. | Nov. | Dec. |
| No. of students |
4 | 3 | 5 | 0 | 1 | 6 | 1 | 3 | 4 | 3 | 4 | 2 |
A student is choosen at random. Fill in the boxes.
Total number of students = `square`
Let E be the event that the selected student is born in June.
Then,
Number of times event E occurs = `square`
So, P (selected student is born in June)
P(E) = `"Number of students born in June"/square`
= `square/square`
= `square`
Read the following passage:
|
"Eight Ball" is a game played on a pool table with 15 balls numbered 1 to 15 and a "cue ball" that is solid and white. Of the 15 numbered balls, eight are solid (non-white) coloured and numbered 1 to 8 and seven are striped balls numbered 9 to 15.
|
Based on the above information, answer the following questions:
- What is the probability that the drawn ball bears number 8?
- What is the probability that the drawn ball bears an even number?
OR
What is the probability that the drawn ball bears a number, which is a multiple of 3? - What is the probability that the drawn ball is a solid coloured and bears an even number?
Assertion (A): The probability that a leap year has 53 Sundays is `2/7`.
Reason (R): The probability that a non-leap year has 53 Sundays is `1/2`.
