Mathematics · Probability Distribution
The probability distribution of a discrete random variable X is given below: X: 4k, 307k, 327k, 347k, 367k, 387k, 407k, 6k P(X): 215, 115, 215, 15, 115, 215, 15, 115 If expectation E(X) = 26315, then P(X < 20) is equal to:
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1115
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