Answer:
it's either 200:15 or 20:15 or 15:20
Step-by-step explanation:
Answer:
a. (b) 2.5
b. (b) 1.89
Step-by-step explanation:
E(X) =0(0.05)+1(0.25)+2(0.35)+3(0.15)+4(0.15)+5(0.15)= 2.5
So first, this is point slope form. The first step is to distribute.)

Then add 4 to both sides.

Then add 2x and it becomes
They are equal because of you simplify 80/100 by dividing by 10 u get 8/10