Answer: 0.9414
Step-by-step explanation:
Given : One of the questions on a survey asked adults if they used the internet at least occasionally.
450 out of 478 adults aged 18–29 answered Yes.
Then, the point estimate of the proportion of adults aged 18–29 who use the internet will be :-
Thus , a point estimate of the proportion of adults aged 18–29 who use the internet= 0.9414
x-coordinates for the maximum points in any function f(x) by f'(x) =0 would be x = π/2 and x= 3π/2.
<h3>How to obtain the maximum value of a function?</h3>To find the maximum of a continuous and twice differentiable function f(x), we can firstly differentiate it with respect to x and equating it to 0 will give us critical points.
we want to find x-coordinates for the maximum points in any function f(x) by f'(x) =0
Given f(x)= 4cos(2x -π)
In general
from x = 0 to x = 2π :
when k =0 then x = π/2
when k =1 then x= π
when k =2 then x= 3π/2
when k =3 then x=2π
Thus, X-coordinates of maximum points are x = π/2 and x= 3π/2
Learn more about maximum of a function here:
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