Answer:
c) Population parameter or Population statistic
Step-by-step explanation:
<u>Population</u>:-
<em>The totality of observation with which we are concerned , whether this number be finite or infinite is called population</em>
<u>Sample </u>:
A sample is subset of a Population
Given data the USA today internet poll is called Population
<em>Given data 73 percent of readers are satisfied with their lives.
</em>
<em>This is called Population parameter.</em>
Answer:
B.
Step-by-step explanation:
Perpendicular lines always intercept at a right angle (90 degrees).
Let the side length of the square be x, then A = x^2
but diagonal (z) = sqrt(2x^2)
z^2 = 2x^2
x^2 = 1/2 z^2
Thus, A = 1/2 z^2
dA/dz = 1/2 (2z) = z
The rate of change is z.
When z = 4, the rate is 4.
