A multiple choice quiz has guesses at each answers, which expression from the following will represent the probability of getting exactly 2 correct answers? questions, each with four possible answers. If someone simply А. В. 10С2 С. 10С2 D. 1/4

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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A multiple choice quiz has 10 questions, each with four possible answers. If someone simply
guesses at each answers, which expression from the following will represent the probability of
getting exactly 2 correct answers?
А.
8
3
В. 10С2
8
С. 10С2
D.
10C,
4
Transcribed Image Text:A multiple choice quiz has 10 questions, each with four possible answers. If someone simply guesses at each answers, which expression from the following will represent the probability of getting exactly 2 correct answers? А. 8 3 В. 10С2 8 С. 10С2 D. 10C, 4
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