If

x_(1)N(\\\\mu ,\\\\sigma ^(2))

and

x_(2)N(\\\\mu ,\\\\sigma ^(2))

are independent and identically distributed normal random variables, then what's the difference between

2x_(1)

and

x_(1)+x_(2)

? They both have normal distributions.\ Choose the correct answer below.

If X1N(,2) and X2N(,2) are independent and identically distributed normal random variables, then what's the difference between 2X1 and X1+X2 ? They both have normal distributions. Choose the correct answer below. If X1N(,2) and X2N(,2) are independent and identically distributed normal random variables, then what's the difference between 2X1 and X1+X2 ? They both have normal distributions. Choose the correct answer below