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grigory [225]
3 years ago
13

The distribution of random variable r has mean 10 and standard deviation 4. The distribution of random variable s has mean 7 and

standard deviation 3. If r and s are independent, what are the mean and standard deviation of the distribution of r−s ?.
SAT
1 answer:
mario62 [17]3 years ago
6 0
좋은 하루 되시고 도움이 되셨길 바랍니다.
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<h3>Trigonometric ratios</h3>

The image of the triangle is missing and so i have attached it.

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