A mini-test consists of three multiple choice questions each with three answers to choose from. The questions always appear in the same order but the answers to each are arranged at random. How many possible variations of the test are there?

A mini-test consists of three multiple choice questions each with three answers to choose from. The questions always appear in the same order but the answers to each are arranged at random. How many possible variations of the test are there?

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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