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प्रश्न
If a number x is chosen at random from the numbers –3, –2, –1, 0, 1, 2, 3, then find the probability of x2 < 4.
बेरीज
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उत्तर
| x | –3 | –2 | –1 | 0 | 1 | 2 | 3 |
| x2 | 9 | 4 | 1 | 0 | 1 | 4 | 9 |
Total possible outcomes = 7
Favourable outcomes = x2 < 4 i.e., x = –1, 0, 1 = 3
P(x2 < 4) = `3/7`
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