alexar6332
29.09.2019 •
Mathematics
Auniversity has 28,980 students. in a random sample of 180 students, 12 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 .
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Ответ:
Language| 12 | x
Total | 180 | 28980
Use cross multiply:
12(28980) = 180(x)
347760 = 180x
347760/180=1932
Ответ:
First one second one and fifth one.
Step-by-step explanation:
Got it right on edge