Ballerinalauren Ballerinalauren

03-04-2015
Mathematics

contestada

How many combinations of 5 students can a teacher choose from 24 students?
A. 5,100,480
B. 42,504
C. 7,962,624
D. 120

Respuesta :

justinkowalsky justinkowalsky

03-04-2015

The correct answer will be B. 42, 504.

This is a trick from University and High School Statistics.

You must think you have 24 students, and must CHOOSE 5.

On a calculator you do 24C5 (or whatever your function is for combinations) and that is how you get the answer.

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Please give an explanation with you answer, thank you :)