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Question
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 | 0.10 | 0.15 | 0.20 | 0.25 | 0.15 | 0.1 |
Find the probability that
X is non-negative
Solution
P (X is non - negative)
= P ( X=0) + P(X=1) + P(X=2) + P(X=3)
= 0.20 + 0.25+ 0.15 + 0.1 = 0.70
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