Missing part of the question
Some parts of California are particularly earthquake-prone. Suppose that in one metropolitan area, 25% of all homeowners.....................
Answer:



Step-by-step explanation:
Given


Solving (a): The probability distribution of x
We have:


The probability of not having earthquake insurance (q) is:


If x has insurance, then n - x do not.
The distribution follows a binomial pattern. So, the probability distribution is:

Substitute 4 for n

Solving (b): The most likely value of x i.e. The mean
We have:
and




Solving (c): At least 2 of 4 selected have earthquake insurance.
This is calculated as







So:



--- approximated
I think will be 0,0...........
Answer:
3x - y = 8
y = 3x - 8
y = 3*2.5 - 8 = -0.5 --> (2.5, -0.5)
y = 3*5 - 8 = 7 --> (5, 7)
Answer C is correct.