L, Suppose that X is a random variable which only takes on non-negative values, with mean 5 and variance 2. (a) What can be said about P(X≥ 7)? (b) Find a k> 0 such that P(X - 52 k) < .

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L, Suppose that X is a random variable which only takes on non-negative values, with
mean 5 and variance 2.
(a) What can be said about P(X ≥ 7)?
(b) Find a k >0 such that P(|X - 5| ≥ k) < } .
Transcribed Image Text:L, Suppose that X is a random variable which only takes on non-negative values, with mean 5 and variance 2. (a) What can be said about P(X ≥ 7)? (b) Find a k >0 such that P(|X - 5| ≥ k) < } .
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