vett072804
03.02.2020 •
Mathematics
Xis a random independent variable with mean 20 and standard deviation of 5. also suppose that y is a random independent variable with mean of 40 and standard deviation 10. find the variance and standard deviation of the random variable z = 2 + 10x
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Ответ:
x^2 - 2 = 2
has integer coefficients
but the solutions are not integers