Question

How many ways can an employer send 3 employees to a job fair if she has 11 employees?

A. 990







B.6,652,800







C. 40,320







D. 165

Answer 1

(11 choose 3) = 165

Answer 2

here is the case of combination.

Answer 3

Right. Know that you can calculate this on a TI-84 calculator?

11 nCr 3 = 165.

To access the nCr operator, press the MATH key, select PRB (for probability) and then press 3 (to select the nCr operator from the list of choices).

Answer 4

Thank you!