Answer :
Answer:
The expected number of students at the university who speak three or more languages is 1898.
Step-by-step explanation:
Given that A university has 28,470 students.
In a random sample of 285 students, 19 speak three or more languages.
To find the expected number of students at the university who speak three or more languages :
From the given 19 out of 285 speaks three or more languages, a expected number of students would be given by
[tex]28470\times (\frac{19}{285})[/tex]
[tex]=\frac{540930}{285}[/tex]
[tex]=1898[/tex]