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Determining the standard normal distribution

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The scaling factor k must be such that the total probability is one. Therefore, we have k = 1/36. The table shows one instance where x + y >5, which is x = 3, y = 3. The probability is p = 9/36 = 1/4.

x × y

x =1 2 3

Y=1

123

=2

246

=3

369

Suppose that A and B are random variables, each follows a standard normal distribution, and the covariance between A and B is 0.35. What is the variance of (3A+ 2B)?

A. 14.47

B. 17.20

C. 9.20

D. 15.10

Reference no: EM13882175

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