The probability mass function of the discrete random variable X is given by the following table

X -1 0 1/2 1

PX(x) 1/8 1/8 1/4 1/2

Q: Let Y = X^2, calculate the standard deviation of Y

Results 1 to 2 of 2

- Feb 18th 2013, 04:16 AM #1

- Joined
- Feb 2013
- From
- Toronto
- Posts
- 188
- Thanks
- 11

- Feb 19th 2013, 02:09 AM #2

- Joined
- Sep 2012
- From
- Australia
- Posts
- 6,571
- Thanks
- 1709