Mathematics · Probability and Statistics
Suppose a random variable X has the following probability distribution: X : 0, 1, 2, 3 P(X = x) : 0.1, 0.3, 0.4, 0.2 Then the expected value E(X) of the random variable X is:
- 11.0
- 21.5
- 31.7✓
- 41.9
Correct answer
1.7
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