You can just overall divide 100 from 25 to get a percentage because you're trying to find the percentage of captown only but per se if you were to find various cities in Maltania than you can just divide 100 by the percent of the population.
He changes are 3 times larger each time.
8 changed by 4 to get to 12.
12 changed by 12 to get to 24.
24 changed by 36 to get to 60.
60 changed by 108 to get to 168.
Find out the value of z
Remember that
z =(x - μ)/σ
we have
μ=18
σ=5
For x=5
substitute
z=(5-18)/5
z=-2.6
Using a z-scores table
we have that
P(x ≥ 5)=0.99534
therefore
<h2>the answer is option A</h2>
