Each of A, C, and D are rational, so presumably B is the answer here.
A is rational, since
, so
.
C is also rational. If
, then
. This would mean
, and so
.
D is rational by a similar argument. If
, then
. So,
, which means
.
Using sampling concepts, it is found that the population of interest is given by:
All American teens who are between the ages of 13 and 17.
<h3>What is sampling?</h3>
It is a common statistics practice, when we want to study something from a population, we find a sample of this population, which is a group containing elements of a population. A sample has to be representative of the population, that is, it has to involve all segments of the population.
<h3>For example:</h3>
I want to estimate the proportion of New York state residents who are Buffalo Bills fans. So i ask, lets say, 1000 randomly selected New York state residents wheter they are Buffalo Bills fans, and expand this to the entire population of New York State residents.
In this problem, a sample of American teenagers aged 13 to 17 was taken, hence all American teenagers aged 13 to 17 is the population of interest.
More can be learned about sampling concepts at brainly.com/question/25122507
{18,21,24,27(A),36,37,38(B)}
Answer:
21 5/9
Step-by-step explanation:
Answer:
x = 6/5 = 1 
Step-by-step explanation:
3x + 1 = -2x + 7
+2x - 1 = + 2x - 1
5x = 6
x = 6/5 = 1
Hope this helps:)
