The given equation of parabola is:
Part 1) Focus of the Parabola
In order to find the focus and equation of directrix, we first have to convert the given equation to standard form of parabola.

The focus of the general equation of parabola shown below lies at (h+p, k)

Comparing our equation to the general equation we get:
h=0
k=0
p=6
So the focus of given parabola will be (0+6, 0) = (6,0)Part 2) Directix of the ParabolaThe directrix of the general parabola shown above lies at:
x = h - p
Using the values of h and p, we get
x = 0 - 6
x = -6
So, the directrix of the given parabola has the equation x = -6
The size of the sample should be obtained at 2401 in order to be 95% confident
Given that:
Margi of error, 
Population proportion, 
To Find: The size of the sample that should be obtained in order to be 95% confident
Let the size of the sample be n
Using formula,

Therefore, the size of the sample should be obtained at 2401 in order to be 95% confident
Learn more about Population proportion here brainly.com/question/15703406
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2.36 g = 0.0236 hg
I hope this helped you.
Have a great day!
Is there more to it?? if there is let me see it because I get this math