We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
0
180
2
avatar+838 

please help with part C

 Oct 31, 2018
 #1
avatar+5074 
+1

\(200 = R + P + C = \\ \\ R + (3R+4) + C =\\ \\ 4(R+1)+C\\ \\ C = 196-4R\)

 

\(E[C] =\\ E[196-4R]=\\ 196-4E[R] = \\ 196-4(2) = 188 \)

 

\(Var[C] = Var[196-4R] = \\ 4^2 Var[R] = \\ 16Var[R] =\\ 16(1.2) = 19.2\)

.
 Oct 31, 2018
edited by Rom  Oct 31, 2018
 #2
avatar+838 
0

Thank you!!

 Oct 31, 2018

27 Online Users

avatar
avatar