Each are divisible by 11 so the ratio equivalent would be 7:9
To simplify, we need to find a number that can divide both the numerator and denominator equally. Can you find a number that will do this? I can't. So it is already simplified.
Simple....
What is equivalent to 7(x-3)?
Distributing....
7*x=7x
7*-3=-21
7x-21
Thus, your answer.
Answer:
1.3125
Step-by-step explanation:
Given that our random variable
follows a Poisson distribution
Evaluate the formula at 

#since

The mean and variance of the Poisson distributed random variable is equal to
:

#By property variance:

The expectation is 1.3125
B, because you would just assume the line continues forever on both sides.