Answer to Question #200880 in Statistics and Probability for Umay

Question

What is the number of possible samples from the given: N = 7, n=3.

Answer 1

Number of possible samples $= \frac{N!}{n!(N-n)!}$

$=\frac{7!}{3!(7-3)!} \\ = \frac{5 \times 6 \times 7}{2 \times 3} =35$