<span>E[Y] = 0.4·1 + 0.3·2 + 0.2·3 + 0.1·4 = 2
E[1/Y] =0.4·1/1 + 0.3·1/2 + 0.2·1/3 + 0.1·1/4 = 0.4 + 0.15 + 0.0666 + 0.025?0.64
V[Y] =E[Y2]-E[Y]2= (0.4)·12+(0.3)·22+(0.2)·32+(0.1)·42-22= 0.4+1.2+1.8+1.6-4= 5-4 = 1</span>
5136/8 is equal to 642.
You can use a calculator if you'd like.
Answer:
(A)55
Step-by-step explanation:
From the values on the graph which is presented in the table above, the number of people who rode the bus during the 12.00 hour is 55.
<u>The correct option is A.</u>
Answer:
yess queen
Step-by-step explanation:
why not
Answer:
The answer in order from least to greatest is C.
