Question

Northside High wants to estimate the number of seniors who plan to go to a 4-year college. Answer the following.(a) Which of the following surveys probably would best represent the entire population ofseniors?25 seniors are randomly selected; 14 plan to go to a 4-year college.O 25 honor roll students are randomly selected from the senior class; 15 plan to go to a4-year college.O 25 student council members are randomly selected; 17 plan to go to a 4-year college.(b) There are 750 seniors at Northside High. Using your answer from part (a), estimate thenumber of seniors who plan to go to a 4-year college.seniorsХ5?

Answer 1

a)

We want to see which of the following survey would be most appropriate to figure out the number of senior who want to go to 4-year college.

We will ask seniors to see who wants to go to college.

No honor roll students.

No student council members.

So,

25 seniors are randomly selected; 14 plan to go to a 4-year college.

b)

The rate from part (a) is 14 out of 25 senior plan to go to college.

So, out of 750 seniors, we will expect

$\frac{14\times750}{25}=420$

seniors to plan to go to 4-year college.

Answer

420