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प्रश्न
One card is drawn from a pack of 52 cards, each of the 52 cards being equally likely to be drawn. Find the probability that the card is drawn is ’10’ of a black suit.
उत्तर
Event = { '10' of blacksuit}
n(E) = 2
P(E) = ?
P(E) = `"n(E)"/"n(s)" = 2/52 = 1/26`.
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संबंधित प्रश्न
Ramesh chooses a date at random in January for a party.
| January | |||||
| Mon | 6 | 13 | 20 | 27 | |
| Tue | 7 | 14 | 21 | 28 | |
| Wed | 1 | 8 | 15 | 22 | 29 |
| Thurs | 2 | 9 | 16 | 23 | 30 |
| Fri | 3 | 10 | 17 | 24 | 31 |
| Sat | 4 | 11 | 18 | 25 | |
| Sun | 5 | 12 | 19 | 26 | |
Find the probability that he chooses:
- a Wednesday
- a Friday
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