MCQ
A random variable X has the following probability distribution:
Then, the expected value of X is ______.
| X = x | –1 | 0 | 1 | 2 | 3 | 4 |
| P(X = x) | 0.25 | 2k | 0.1 | k | 0.15 | 2k |
- A1.5
- B0.7
- ✓1.3
- D0.5
| X = x | –1 | 0 | 1 | 2 | 3 | 4 |
| P(X = x) | 0.25 | 2k | 0.1 | k | 0.15 | 2k |
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$\ce{CH3CH(CH3)CH2C(CH3)2CH3}$