20
denise has conducted an observational study to learn about different influences that affect which colleges students choose to attend. denise surveyed 400 students at her new college and found that 80% of the students chose their college based on a friend who also attends that college.
what conclusion can denise make from her study?
a. there may be a link between knowing current students and choosing a college, and she can draw a cause-and-effect conclusion from an observational study.
b. there may be a link between knowing current students and choosing a college, but she cannot draw a cause-and-effect conclusion from an observational study.
c. knowing a current student enrolled at a college causes incoming students to choose that college, but she cannot draw a cause-and-effect conclusion from an observational study.
d. knowing a current student enrolled at a college causes incoming students to choose that college, and she can draw a cause-and-effect conclusion from an observational study.

It may be D, correct me if i'm wrong.

Step-by-step explanation:

We already know that the majority of students will go to a college based on somebody else going to that college. With that in mind, we can draw a cause-and-effect conclusion summarizing why they want to choose that college (Because there friend) and the effect as there friend goes to that college.

Denise has conducted an observational study to learn about different influences that affect which colleges students choose to attend. Denise surveyed 400 students at her new college and found that 80% of the students chose their college based on a friend who also attends that college.

What conclusion can Denise make from her study?

A. There may be a link between knowing current students and choosing a college, and she can draw a cause-and-effect conclusion from an observational study.

B. There may be a link between knowing current students and choosing a college, but she cannot draw a cause-and-effect conclusion from an observational study.

C. Knowing a current student enrolled at a college causes incoming students to choose that college, but she cannot draw a cause-and-effect conclusion from an observational study.

D. Knowing a current student enrolled at a college causes incoming students to choose that college, and she can draw a cause-and-effect conclusion from an observational study.

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.