Can someone please help me with this question by hand and not in excel? Thank you.

A) A random variableXhas a mean of= 10 and a standard deviation of= 3. The random variableXis multiplied by the constant 2 to create a new variableY(i.e.,Y= 3X).

What is the variance ofY?

a)

36

b)

12

c)

27

d)

6

e)

This can't be determined with the information provided.