rauci20 rauci20

03-07-2021
Mathematics

contestada

X and Y are independent random variables. X has mean 100 and standard deviation 12. Y has mean 30 and standard deviation 9. What are the mean and standard deviation of (X–Y)?

Respuesta :

irmabella7877 irmabella7877

13-07-2021

Answer:

x is down and up and y is up then down

Step-by-step explanation:

I think

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