These ad agencies must focus on their target audience, which are the students. Hence, they should gather data on the pool that will surely comprise of students. For agency B, social media posting is not a good source pool. It's true that students are very participative and opinionated in social media. However, they can't be sure that these are students. Some parents are in social media, as well. Some are working individuals, and some are out of school youth. Unlike agency A, agency B has to sort out profiles first and identify which ones are students. Hence, agency A will produce a fair sample of the student population because it is unarguably true that everyone in the school enrollment data are students.

The answer is B.

7 0

4 years ago

Factor the polynomial function over the complex numbers.

Bumek [7]

Answer:

$[x - 1][x + 1][{x}^{2} + 4]$

Step-by-step explanation:

Knowing that you have to find two numbers that when they differ to 3, they also multiply to −4, and those numbers are −1 and 4. So, after clearing that up, you will have this [since our degree of this polynomial function is 4]:

$[{x}^{2} - 1][{x}^{2} + 4]$

Then, since ${x}^{2} - 1$ is factorable, you will get this:

$[x - 1][x + 1]$

Finally, attach $[{x}^{2} + 4]$ to the partially factored polynomial to get this:

$[x - 1][x + 1][{x}^{2} + 4]$

I am joyous to assist you anytime.

4 0

4 years ago