6 math books would be 126
5 English books would be 150
126+150=276
Answer:
For X, the parameter
is λX = 1/2 and for Y it is λY = 1. Using the formula sheet, Mean is
E[Z] = E[X] + 2E[Y ] = 4. Variance is V ar(Z) = V ar(X) + 4V ar(Y ) = 8.
Answer:
45/1=45
90/2=45
135/3=45
180/4=45
225/5=45
Step-by-step explanation:
