Question

A university has 29,670 students. In a random sample of 255 students, 17 speak three or more languages. Predict the number of students at the university who speak three or more languages.​

Answer 1

I am sorry but it is just an example !


Question ) A university has 30,330 students. In a random sample of 270 students, 18 speak three or more languages. Predict the number of students at the university who speak three or more languages.

Answer ) 2,022 students will speak three or more languages

Here's why:
Using proportions.
18. x
--- =. ----
270. 30,330

Cross multiply
18 x 30,330 = 545,940
270 multiply x = 270x
545,940 divided by 270 = 2,022
x = 2,022 students

Answer 2

Answer:

you're Answer is 1,978 students because in below explanation

Step-by-step explanation:

Since 17 out of 255 students speaks three or more language, a prediction would be 29,670×17/255

= 1,978 students