Answer:
E(w) = 1600000
v(w) = 240000
Step-by-step explanation:
given data
sequence = 1 million iid (+1 and +2)
probability of transmitting a +1 = 0.4
solution
sequence will be here as
P{Xi = k } = 0.4 for k = +1
0.6 for k = +2
and define is
x1 + x2 + ................ + X1000000
so for expected value for W
E(w) = E( x1 + x2 + ................ + X1000000 ) ......................1
as per the linear probability of expectation
E(w) = 1000000 ( 0.4 × 1 + 0.6 × 2)
E(w) = 1600000
and
for variance of W
v(w) = V ( x1 + x2 + ................ + X1000000 ) ..........................2
v(w) = V x1 + V x2 + ................ + V X1000000
here also same as that xi are i.e d so cov(xi, xj ) = 0 and i ≠ j
so
v(w) = 1000000 ( v(x) )
v(w) = 1000000 ( 0.24)
v(w) = 240000
Answer:
using the pythagoras theorem
AB^2 + AC^2 = BC^2
12^2 + 5^2 = BC^2
144 + 25 = BC^2
169 = BC^2
13 = BC
NOW, since the triangles are similar BC = XZ
THEREFORE, XZ = 13 m
hope it helps !!!!
Answer:
0.4
Step-by-step explanation:
6 / 15 is the same as 6 ÷ 15 which is 0.4
hope this helps...
Regular polygon is a polygon with equal sides and equal angles!!!
S = .85p; she gets 15% off, so she actually pays only 85%.
