SS__
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Having some difficulty with this question, would like some help:

Let X1 and X2 be independent random variables. X1 has expectation 3 and variance 1. X2 has expectation 1 and variance 2. How do I find the prob. that both X1 and X2 will be greater than 2?

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mqb2766
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(Original post by SS__)
Having some difficulty with this question, would like some help:

Let X1 and X2 be independent random variables. X1 has expectation 3 and variance 1. X2 has expectation 1 and variance 2. How do I find the prob. that both X1 and X2 will be greater than 2?

Thanks
Independent means you'll multiply the individual probabilities to get the joint.
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SS__
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(Original post by mqb2766)
Independent means you'll multiply the individual probabilities to get the joint.
So would I just find P(X>2) for both X1 and X2 and multiply together?
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mqb2766
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(Original post by SS__)
So would I just find P(X>2) for both X1 and X2 and multiply together?
Yes
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