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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A football team consists of 19 each freshmen and sophomores, 15 juniors, and 18 seniors. Four players are selected at random to serve as captains. Find the probability of the following. Enter your answers as fractions or as decimals rounded to 4 decimal places. (a)All 4 are seniors. P(4 seniors)=
Elizabeth brought a box of donuts to share. There are two-dozen (24) donuts in the box, all identical in size, shape, and color Five are jelly-filled, 8 are lemon-filled, and 11 are custard-filled. You randomly select one donut, eat it, and select another donut. Find the probability of selecting a lemon-filled donut followed by a custard-filled donut. (Type an integer or a simplified fraction.) ry ources ions ols Enter your answer in the answer box and then click Check Answer clearAl Chock Answ All parts showing Copyright t 2021 Pearson Education Inc. All rghts reserved. Terms of Use | Privacy Policy | PermissionS/ Contact US/ 2:08 PM 87F Mostly cloudy ^ 7/12/2021 99 Type here to search DELL F12 PrtScr Insert Delete PgUp PgDn F7 F8 F9 F10 F11 F2 F3 F4 F5 F6
A bag contains 9 red marbles, 5 white marbles, and 8 blue marbles. You draw 4 marbles out at random, without replacement. Find the following probabilities, and round to 4 decimal places.a. The probability that all the marbles are red is b.The probability that none of the marbles are red is .
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.
Suppose that your friend Kamala randomly chooses a number between 1 and 13 (including both 1 and 13) and asks you to guess what it is. Answer the following questions: 1. What is the probability she is thinking of an even number? 2. What is the probability the number she is thinking of has a 1 in it? 3. What is the probability that the number she is thinking of is at least 5?
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?
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a quiz for a psychology class consists of ten questions, the questions are multiple choices with five possible answers each with only one correcct answer. if the student did not study and is guessing for all ten questions (x is the number of correct answers a students get correct) A- what is the probability of that student gettting one correct answer? B- what is the probability of that student getting a passing grade (70% or more correct is passing)
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
Suppose that 30% of people have a dog, 17% of people have a cat, and 10% of people own both. What is the probability that someone owns a dog or a cat? The probability of a person having a dog or a cat is (Type an integer or a decimal.)
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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.)