The random variable X has a variance of 2.4

Let Y = 5X + 7.6

What is the standard deviation of Y?

Please show me how to work out

Printable View

- Apr 27th 2010, 03:57 AMartikillerI can't work out the SD of this question
The random variable X has a variance of 2.4

Let Y = 5X + 7.6

What is the standard deviation of Y?

Please show me how to work out - Apr 27th 2010, 04:58 AMmr fantastic