Question

A university has 36,180 students. In a random sample of 210 students, 14 speak three or more languages. Predict the number of students at the university who speak three or more languages.

The expected number of students at the university who speak three or more languages is __________.

Answer 1

2,412

Explanation:

`\displaystyle E(X)=np=(36180)\biggr((14)/(210)\biggr)=2412`

Therefore, we can expect 2,412 students at the university to speak 3 or more languages.