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Quantitative Aptitude

Probability

The Probabili...

Question

The Probability Density Function (PDF) of two functions are given below:

If X and Y are independent random variable then of E[4X +3Y] is ___________
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Solution

The correct option is A 0
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Since the PDFs are sysmmetrical about y - axis
E[X] = E[Y] = 0
4E[X] + 3E[Y] = 0

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