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प्रश्न
Solve the following :
The following probability distribution of r.v. X
| X=x | -3 | -2 | -1 | 0 | 1 | 2 | 3 |
| P(X=x) | 0.05 | 0.1 | 0.15 | 0.20 | 0.25 | 0.15 | 0.1 |
Find the probability that
X is positive
बेरीज
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उत्तर
P (X is positive) = P(X = 1) + P (X = 2) + P(X = 3)
= 0.25 + 0.15 +0.1+ = 0.50
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