Answer:
Step-by-step explanation:
Given that:
X(t) = be the number of customers that have arrived up to time t.
... = the successive arrival times of the customers.
(a)
Then; we can Determine the conditional mean E[W1|X(t)=2] as follows;




Now 
(b) We can Determine the conditional mean E[W3|X(t)=5] as follows;

Now; 
(c) Determine the conditional probability density function for W2, given that X(t)=5.
So ; the conditional probability density function of
given that X(t)=5 is:

Answer:
X=9?
90°
Step-by-step explanation:
A scientific theory is a validated explanation of some aspect of the natural world, based on multiple facts that have been frequently verified through research and experimentation. Fact theories are not "guesses" but reliable accounts of the real world.
Answer:
Option A, 
Step-by-step explanation:
Given: Deborah bought a computer for
off the list price.
The list price is
.
To find: The amount Deborah spent on the computer.
Solution: We have,
List price of the computer
.
Deborah bought the computer for
off the list price.
The amount Deborah spent on the computer 
.
So, Deborah spent
on the computer.
Hence, option A is correct.
Complement angles, sum is equal 90
Give one angle = 70 to find other: 90 - 70 = 20
Answer
Complement of angle with the measure of 70 degrees is 20 degrees