20 19 A race consists of seven runners. How many ways can the runners finish first, second and third? А. 21 В. 42 С. 210 D. 5040 7SP.7 21 22
20 19 A race consists of seven runners. How many ways can the runners finish first, second and third? А. 21 В. 42 С. 210 D. 5040 7SP.7 21 22
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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