-1,5 is the correct answer here. 0+2, 4-4 then 2-3 0+5.
He has 9 choices for the first role, and that leaves him 8 people to choose for the second so he has 9*8 = 72 choices for the first two roles; that leaves 7 possible choices for the third role so that gives him 9*8*7 choices or 504 different ways he can assign the roles. i think this is correct.
Answer:

Step-by-step explanation:
-Given that 
-We determine the z-value corresponding to the 95% confidence level:

-The margin of error is the degree of error from the real value and is calculated as follows:

Hence, the margin of error is 
The one that I got to say I love it but it's not a good thing lol I just got it off of lol lol I got my phone number and my phone got a lot to get back and I'm just trying it out for my classes but it's still working and