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प्रश्न
Choose the correct alternative:
A discrete probability function p(x) is always
पर्याय
non-negative
negative
one
zero
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उत्तर
non-negative
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संबंधित प्रश्न
A continuous random variable X has the following distribution function
F(x) = `{{:(0",", "if" x ≤ 1),("k"(x - 1)^4",", "if" 1 < x ≤ 3),(1",", "if" x > 3):}`
Find k
Suppose that the time in minutes that a person has to wait at a certain station for a train is found to be a random phenomenon with a probability function specified by the distribution function
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Choose the correct alternative:
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The probability function of a random variable X is given by
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P(X ≤ 0)
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f(x) = `{{:("a" + "b"x^2",", 0 ≤ x ≤ 1),(0",", "otherwise"):}`
where a and b are some constants. Find a and b if E(X) = `3/5`
