3. A student guesses at random on a true-false quiz that consists of three questions. What isthe probability that the student guesses at least one of the questions correctly? (You canassume that the correct answer is True for all three questions.)

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Answered: 3. A student guesses at random on a…

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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Similar questions

The probability that a student knows the correct answer to a multiple choice question is 2/3. If the student does not know the answer, then the student guesses the answer. The probability of the guessed answer being correct is 1/4.Given that the student has answered the question correctly, the conditional probability that the student knows the correct answer is 8/9 3/4 2/3 5/6
Whenever Suzan sees a bag of marbles, she grabs a handful at random. She has seen a bag containing three red marbles, three green ones, two white ones, and two purple ones. She grabs seven of them. Find the probability of the following event, expressing it as a fraction in lowest terms. She has at most one green one.
You are playing Blackjack, and you have a 3, a 4, and a Q. Dealer has an Ace. What is the probability that the dealer wins with their second card if you decide to stand? a. 10/16 b. 8/16 c. 7/16 d. 9/16 e. None of the other answers is correct.
A hacker is trying to guess someone's password.The hacker knows that the password is 4 digits long,and that each digit could be a number between 0 and 3.Assume that the hacker makes random guesses.What is the probability that the hacker guesses the password right on her first try?
Tom has a standard set of pool balls. If he were to draw one ball at random, what is the probability that it will be red or yellow? Give your answer in its simplest form.
Ernie has a bag of candy that contains 8 peppermint patties and 12 caramels. If he reaches into the bag and pulls out one bar and then a second bar at random, what is the probability that they will both be peppermint patties? O 2/3 2/5 7/19 O 14/95
Kim is playing scrabble. What is the probability she chooses the tiles with the letters of her name, in order, when she draws three tiles from the bag? (Assume that when she begins there is one tile of each letter in the alphabet.

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3. A student guesses at random on a true-false quiz that consists of three questions. What is the probability that the student guesses at least one of the questions correctly? (You can assume that the correct answer is True for all three questions.)